Um. Ok. So two years ago the Intel drives weren't out. Atrocious SSD's that could not do random writes were all that existed. In fact, I bought a 32GB JMicron based SSD for testing at work almost exactly 2 years ago for $235. It could do 110MB/sec read and ~60MB/sec sequential write, but did random writes at ~6 per second!
Intel's drives came out in October of 2008. The 80GB one cost $700 and sat at that price, give or take $75 or so until ~April 2009. By the time they were available for the price you bought it for, $350 it was about 1 year ago.
You're like the guy who bought a Pentium Pro when it came out then complained 3 years later when the Pentium II came out. The X-25M was ahead of its time.
I'm sure you had a ~1TB drive for the stuff that takes space. No OS only install requires 80GB. OS + a few games and apps fits in 80GB.
I have ~100 of these drives used in production servers. None have died. I have been hit by the firmware issues that lead to slow writes, and have had them degrade in performance and require some 'reconditioning' (write at leat 50% of the drive sequentially, then re-write that and delete it) to get them back. I'm looking forward to using trim/discard in linux on G2's. However, it actually has been almost 2 years for me, since I bought them for $730 at first availability in early October 2008, and the reconditioning has just recently been an event, after ~ 150GB of writes per drive per day for 18 months. SMART says they still have 70% of their life left.
The fact is, that these drives handle 200 to 600 random read iops constantly on our servers with sub millisecond latency, and cost a lot less than anything else that can do that.
To answer your question on where the new stuff is:
25nm production has started at Intel and elsewhere, and Intel is manufacturing the next gen drive components now. When the inventory of old stuff gets scarce enough and the flow of new stuff is ramped up, they will release G3. This should be this fall, based on their roadmap and various rumors.
These will have 160GB, 300GB, and 600GB sizes. Along with the 25nm G3 consumer drives will be 32nm "enterprise" versions with similar capacities, but using MLC instead of SLC, and a supercapacitor option this time (to avoid losing recently written data during power loss).
It is expected that the price per GB will roughly drop in half, as it did last time the manufacturing process was upgraded. So a 300GB consumer drive will be ~$450 is my guess. The 300GB enterprise version, on the older process, will probably be ~$1000 (again, my guess).
The next generation, capacity, and price drop after that will be in 2 years (its the semiconductor schedule), and will roughly double capacity again. This doubling every two years is MUCH faster than the rate that Hard Drives have been going lately, but SSD's will not take over the large capacity segment; they'll take over the performance segment.