I've been riding my '16 infamous sticks for the past season and about ~10 days this season already. There's a little bit of damage, but not that much, mostly base gouges from doing stupid shit which can be fixed. I'd say they are really good skis for $300, but I think you would get so much more value out of the $350 ON3Ps. Hopefully, they were maintained well by the shop that rented them out, and if that's true, you got yourself a bomb ass ski. I've never ridden the filthy riches but most people who have had them attest to their durability. If your worried about the current condition, contact ON3P and ask! They are a pretty cool company and provide excellent customer service.
tldr: filthy riches boii
(opinion and second hand experiences, no flame pls)