Mate, of course you should hold on and wait. I doubt the Ps Jailbreak team or anyone will release another exploit anytime soon. As MuscleNerd said once about the iPhone : "If the cat & mouse game escalates too quickly, especially during beta FW periods, nobody but Apple benefits." It is also true about ps3 and sony. We don't have an infinite amount of exploits and if they keep releasing new ones for every firmware that comes out... Soon sony will win for good.
I hate to be the bearer of bad news but... you just shouldn't have updated. Buying another ps3 and selling yours on ebay or something is your best bet.