This keeps getting repeated.. but when I was studying, I bought used IKEA furniture, moved it around several times to different apartments, and then sold it again when I moved from that city.
I've also renovated my house recently which involved disassembling and reassembling some IKEA furniture. They're still fine.
It depends on the type of furniture of course. Yes, there are some specific ones that are harder to disassemble and move without breaking them. But not all.
> I want it to be cheap and disposable.
Isn't it possible to sell them on something like craigslist? I've bought and sold used IKEA furniture before, but I guess it depends on country/culture how willing people are to buy them.
> which is for the current apartment only because it fits it specifically.
I think this is an excellent point. We live in a home I intend to stay in for a long time. It's a bit on the small side, but we try to make the most of it by optimizing the furniture for that specific home. I've even customized IKEA furniture, cutting them to the right width etc. This lets us avoid moving to a new, larger home. That would certainly cost a lot and would be very resource intensive.
I can imagine the next owner would want to keep at least some of the furniture for at least the first few years too, depending on their life situation.