Well sure, but in many cases, you can go to a "proper" furniture store, buy a piece that is a couple of times more expensive than the one from ikea, and get the same particle board and same shitty connections... especially with stuff where the wood is hidden (eg. sofas).
Also the assembly for ikea stuff is usually perfect.. everything aligns to the last millimeter... which again, I can't say for much more expensive furniture pieces.