The only real issue with the pre-recall MB's is that the 3GB/s SATA 2 ports "may" fail on you. If I recall correctly, it's like a 5-10% chance of failure in 2 years under typical usages. Now if you overclock the heck out of the system and make everything run hotter, or maybe run a high-cycle database RAID on the SATA2 ports, the chances of the SATA 2 ports failing sooner occur. However, if you are the typical PC owner or even a mild overclocker (aka, doesn't bump the voltage on every single thing in the BIOS), it's still a pretty low chance of failure for a two year period.
90%+ of winning (AKA "not" failing in two years) is a pretty damn-good Vegas bet and if you are really worried about it, just make sure you don't hook up irreplaceable data drives on the SATA 2 ports. On my P67 Gigabyte pre-recall MB, I use the SATA3 ports for my OS and important stuff, and stick things like movie/game files on the SATA 2 ports. if the SATA 2 ports fail and corrupt my movie/game HD, it aint that big a deal. As of yet, no issues and I do OC to a reasonable 4.2Ghz under stock voltage. If all you have is a DVD drive hooked up to the SATA 2 port, the worst case is that you have a 5-10% chance of the DVD drive not worknig sometime in the future.
The lack of future BIOS updates does not bother me either. It works and is extremely stable as is, so there is no reason to actualy update the BIOS for compatibility reasons. I don't need new BIOS tweaks or anything since I am not trying to make a monster OC machine out of it. FYI; my work machine is the same Asus P8P67 pre-recall MB as yours, and one of my home machines is a Gigabyte P67-UD5 pre-recall, and i have no plans to RMA either until an actual fail. I can always do that later...
I don't expect my SATA2 ports to fail unless I'm unlucky and even if they do, I can still RMA the thing as long as it's under warrantee. It's not like a auto recall where a defect is gonna kill you in a rear-end collision explosion or something. The worse that can happen is the SATA2 ports corrupt the drives connected to them, or just stop working. If it happens within warrantee time, just RMA it then, if it happens outside of warrantee, then too bad, no different than any other major failure. Unlike most failures though, you can keep using the MB though, just don't use the SATA2 ports..