Tbh, linear transfer rate is quite insignificant overall, and "only" 150MB/s is very very competitive with mechanical harddrives in that regard... It's the by and large (almost) nonexistent access time that is the big advantage for SSDs, not fast transfer rates.
aside from that , most users are looking at 60-90 gig drives in the current generation. What exactly am i going to be transfering. I use mine as a windows install with the most used programs on it after that i'm basicly out of space.
I want to get a second larger one and go from 60 to 90 gigs and i'm hoping i find something really good