I like the gory details because I like to be able to search the forum after purchasing an item to see if it has appeared in people's WIWs.
I also like listing the price when it was a good deal! I find it inspiring but maybe others find it obnoxious. I like seeing when people thrifted something, too, because I so admire the patience it requires.
If it seemed like this site was an environment in which people were bragging about status purchases, it would definitely turn me off. But I guess I don't get that vibe-- even from those making high end purchases. It feels like a safe space regardless of size, money, etc.