For me it depends on the item. Anything that has to work, open and close or could give me grief, needs to be quality e.g car, camper, mower, whipper sniper, some tools etc. I don't have the temper for rebuilding something each time I use it.
If the item is fairly straight forward and won't set me off if it breaks,i.e some tooling for the shed which is rarely used, then I will buy the next tier of quality down.
I never buy s--t. If am about to buy a top quality product, I tell the salesman after his/her spiel that I expect the product to provide quality. If it doesn't I will be back to provide less than favourable feedback. My wife hates this and finds it embarrassing.