I guess it just comes down to what folks consider a lot of usage.
Zippy, BigJim, and myself see posters talking about shooting 1,000 rounds through a gun over a couple of years, while one of us might do that in a weekend tournament.
IF you shoot a flat a year or so, then one of the cheaper guns MAY last you a few years; whereas if you gave it a really good workout, it might last you a few months
There is obviously a market for the cheap, price-point built guns as folks THINK they are getting quality because of the looks, but many do not know how to check out a good O/U or SxS and know it from a poor one.
Fit, triggers, barrel regulation, perfect balance, properly struck barrels - all of that takes times and hand-labor by craftsmen, hence the prices for the better made guns
An AyA is an example - the base model - 4/53 - sells at Cabela's for about $3500. That bottom model's barrels get the same hand filing and striking, the same hand labor regulating and laying up as does their $15K Model 1. AyA, because of that attention to detail in the barrels doesn't make as much as they do on the fancier models
You won't see that on Stoeger, Yildiz, Baikal, CZ, or others in that price range - they can't do it and sell them for the price they do