Keep in mind that just about all SSDs have had those physical fragmentation issues, and that intel is one of the few manufacturers that has been active about it. I haven't looked at the SSD market for some months (having something to do with getting an X25-E), but back then you basically had two choices: Intel or OCZ Vertex (specifically
only the Vertex) - EVERYTHING
else sucked (the short story: manufacturers optimizing for high linear speeds ending up with performance lower than harddrives once random read/writes were used).
Cost is still pretty high on SSDs, but once you've had one in your workstation you really don't want to go back. It's not about those ludicrious hundreds-of-megs-per-second linear rates, it's all about the low latency. Couple with a traditional fast HDD for bulk storage and you're flying. I'm considering replacing the 120GB disk in my laptop with a somewhat smaller SSD; I could live with ~60gig there for better speed and no mechanical parts making "hi, I'm about to die" sounds
PS: SSD doesn't necessarily mean lower power consumption; conventional laptop drives are quick to go into standby modes, many SSDs don't have
standby mode (not because they can't, but because the manufacturers are silly and lazy).