your only talking about 1-3 secs improvement in load time on the faster SSDs, program loading times be about the same (as they are nome less then 50mb or smaller when starting up)
write data rates are not important, its how they are done (JMicron bad drives)
i have been useing this Corsair S128 drive for an month now and every thing still loads fast when i open programs or games, and i am not getting the degraded speeds that Vertex based SSDs (falcon,aglity) happen once you have filled the SSD (all pages are needing erasing before Write)
as long as its has cache on it, it will fly SSDs are not like HDDs , its the Access times that make them respond fast, there is basicly no delay when doing things when using SSDs, most games that you install are all single player maps does not mean that if the game installs 7GB that the maps that you play online are that big most are 30-100MB in size or load as you move around