Learn Hardcore German: Die Lieferung ist inklusive Abholung alter Geräte.

Here inklusive is a preposition meaning “including” that takes a complement (normally in the genitive). The verb ist just links the subject to that prepositional phrase: Die Lieferung ist [inklusive Abholung alter Geräte]. It is not an inflected adjective (you don’t say inklusiv). In ads you may also see elliptical uses like Der Preis ist inklusive, where the complement is understood from context.

Which case follows inklusive, and is that why it’s Abholung alter Geräte?

Standard German uses the genitive after inklusive. That’s why you get a genitive noun phrase: inklusive Abholung alter Geräte. With an article, you would see the genitive more clearly: inklusive der Abholung alter Geräte. In everyday speech people sometimes use other cases, but the recommended form is genitive (or no article at all, as here).

Why is it alter Geräte and not alten Geräte?

Because it’s genitive plural without a determiner, so the adjective takes the strong ending -er. Quick overview for plural with no article:

Nominative: alte Geräte
Accusative: alte Geräte
Dative: alten Geräten
Genitive: alter Geräte If you add a determiner (e.g., the definite article), the adjective shows weak endings: der alten Geräte (genitive plural).

Why isn’t it Geräten at the end?

Geräten is the dative plural form. Here you need genitive plural after inklusive, so the noun stays Geräte. You’d use Geräten after a dative-governing preposition like mit: e.g., mit den alten Geräten.

Can I say inklusive von to avoid the genitive?

No. Inklusive does not combine with von. If you want to avoid a bare genitive, you can keep the genitive after inklusive and then use von inside the following noun phrase: inklusive der Abholung von alten Geräten. Here, von alten Geräten belongs to Abholung, not to inklusive.

Is der Abholung also possible instead of no article?

Yes. Inklusive der Abholung alter Geräte is perfectly correct (genitive with article). Without the article (inklusive Abholung …) is a bit more compact and neutral; with the article it sounds a touch more formal or specific.

Can I replace inklusive with something like mit, einschließlich, umfasst, or beinhaltet?

Yes, common alternatives are:

Die Lieferung umfasst die Abholung alter Geräte.
Die Lieferung beinhaltet die Abholung alter Geräte.
Die Lieferung ist einschließlich der Abholung alter Geräte. (like inklusive, takes genitive)
Die Lieferung ist mit der Abholung alter Geräte. (more informal; mit takes dative: here shown by the article)

What exactly is Abholung? Is it derived from abholen?

Yes. Abholung is the noun formed from the separable verb abholen (“to pick up”). As a noun it’s capitalized and feminine: die Abholung, genitive der Abholung.

Could I say das Abholen instead of die Abholung?

Grammatically yes, but it’s stylistically clunky here. You’d have to make it genitive: inklusive des Abholens alter Geräte. In everyday German, the nominalization die Abholung is the idiomatic choice after inklusive.

Why is Abholung capitalized but alter is not?

All nouns are capitalized in German, so Abholung and Geräte are capitalized. alter is an adjective, so it stays lowercase (unless it’s a nominalized adjective, which it isn’t here).

How would I make it more specific, like “your old devices/appliances”?

Add a possessive determiner in the genitive plural:

Formal: inklusive Abholung Ihrer alten Geräte
Informal sg.: inklusive Abholung deiner alten Geräte
Informal pl.: inklusive Abholung eurer alten Geräte Note how the possessive takes the genitive plural ending (Ihrer/deiner/eurer), and the adjective is alten (weak ending because a determiner is present).

Can the inklusive phrase be moved around, or can I drop ist?

Neutral placement: Die Lieferung ist inklusive Abholung alter Geräte.
Parenthetical: Die Lieferung, inklusive Abholung alter Geräte, … (commas optional for a parenthesis)
Fronting (Inklusive Abholung alter Geräte ist die Lieferung) sounds marked/unnatural in everyday prose.
Fragmentary style (ads/lists): Inklusive Abholung alter Geräte. (acceptable as a headline/bullet, but not a full sentence)

Can I use the compound Altgeräte instead of alte Geräte?

Yes. Altgeräte is a common compound for “old/discarded appliances.” Two natural variants:

inklusive Abholung von Altgeräten
inklusive Altgeräteabholung (compound noun; concise but more technical)

Do I need a comma anywhere in the original sentence?

No comma is required in the simple sentence Die Lieferung ist inklusive Abholung alter Geräte. You only add commas if you insert the inklusive phrase parenthetically: Die Lieferung, inklusive Abholung alter Geräte, …