Are you talking about points earned since the move to Revolution, or points carried over from Merge? Although I guess it wouldn't matter though.
On Merge you could use them in the Lock Store for grossly overpriced merchandise that took forever to ship. Or use them for tournament buy-ins, but not all tournaments accepted them (I think all guaranteeds did, though). Or if you were a VIP player and not a rakeback player, you could cash them in at a rate determined by your VIP level.
In my case, I was a grandfathered RB player on Lock @ Merge, so cashing them in wasn't an option for me. I never found anything in the store worth spending them for, so had started using them to enter MTTs here and there. But with the move to Revolution, I noticed one day that my Vault had a points cashout option even though I'm still on RB. Sure enough, I cashed them in for about $250 of "free" money. Was quite pleased with that. So check your Vault.