Honestly ... so many people convinced SSD's are SO good and who actually bought one.
You people should really consider THIS:
most if not all of your io activity IS sequential
most if not all of your io activity IS "big" -> as in not fetching just one 4k block
Because of that, the decreased latency is not going to help you as your file loads are like this :
1 random seek + sequential read (a lot of blocks)
Where the random seek is completely dwarfed by the sequential read time (yes this is also true for a 20 meg file)
So let's summarize :
The low latency represents less than 1% of your speed increase.
The sequential read speed represents 99% of your disk IO
The random read speeds are irrelevant because you DO NOT DO a relevant amount of RANDOM READS unless your hdd is fragmented to hell / some r*tarded developper thought it was cooler to split up a file in 5000 instead of using one big archive-type file.
The random write speeds I won't even talk about it's irrelevant here.
So in effect, the speed upgrade you enjoy is only better sequential read and writes, which you can easily surpass with any hdd raid0.
Here's a little review to explain this:
some review
Now for the price of any decent SSD you can raid0 two of these and beat said SSD on sequential write/reads for files of any size relevant to you (no i do not believe you write single 4k blocks if you do not use a database).
And that's still GREEN drives.
Heck for the price of a single SSD you could raid10 these, get 4(minus a little)x the base seqread performance over 4 goddamn terabytes ! (and yes, that means 600mb/sec seqreads and 200+ mb/sec seqwrites - ooh I see that's not enough for you ? raid10 on 8 disks there you go 1.2gb/sec seqread and 400+ mb/sec seqwrites .and we're still around 600 bucks with 4tb of space).
(yes i'm talking about 320 euros here)
Now quit the flaming, ask some people who actually know something about this and learn instead of saying "I BOUGHT AN SSD ITS GOT TO BE GOOD RIGHT".
And you know what ? Ask anand what he thinks of YOUR usage pattern (which is little more than 5% of the user population, even less than gamers) on either a 300 bucks ssd or a 300 bucks raid10 of green (or not green) 2tb drives.
SSD's ARE AWESOME, for me, for my databases, for virtualization, for coffee making and stuff. but right now, they're not worth the money for you, so please try understanding your own usage pattern, understand the reviews you read and the actual impact on your perception of said improvements.