One thing I've learned lately is that concerning tsv's they cut corners a lot more than I ever imagined. Silly me, I know. There was one tsv I won't mention because I'll offend someone who ordered and liked it. It was a certain brand and type that they've sold before and I thought, wow they are really going to bring that in at large quantity and lower the price making a lot of money.
Not only did they not really lower the price they took the opportunity to make several huge changes to the item to make it cost less - to them. And imho it was not attractive and didn't sell out in any color.
Should I expect this. Yes. Do I appreciate it or want to send them my hard earned dollars for tsv's...no. And maybe that is why a lot of them never sell out.