After opening fifty, the most expensive item type I have obtained has been the lava lamp, which upon being sold reimburses 3/4 of the cost of a standard catsack.
If the chances of getting silver catsacks from these is extremely low, and the most you get is clipboards mixed in with the occasional potato and lava-lamp, then there is no point in purchasing one of these. Why spend 1000 on a catsack if 100% of the time any items you obtain are worth less than the catsack, are non-exclusive, and can mostly be bought for less than the cost of the catsack without the RNG element? There’s no purchase incentive right now.
I get that default catsacks are basic tier, but right now they are so weak that they serve literally no purpose, and once people realize this they will become obsolete as nobody will be buying them.