Agreed! 4GB/day, try 4GB/hr in my case (large files/video encoding); The amount of read/write/move/delete access that my 2.5" 7200RPM 250GB drive goes though per day would kill the SSD in a matter of months. SSD's are still not good enough for mainstream use. Probably good as strictly an OS/Boot drive; You'd want to move the swap/page file to an external to prevent unneeded write access. Once the prices comes down I would probably get one for an OS drive, strictly for the speed improvement; But like all flash based memory or drives they use slower memory/chips for the higher capacities:
"It will become available in capacities ranging from 64 to 256 GB, with promised maximum read-write speeds of 220 and 160 per second respectively."
At approximately $350/100GB, I'll wait! I don't have $$$ just lying around for that kind of frivolity.