I had the same thoughts as a lot of people in this thread yesterday. My old hard drive was pretty much just as quick for general use (ie not just for benchmarking or booting windows), day to day use I doubt I could notice any difference. I've had my C300 256gb drive now for 5 months and I remember getting it and putting it in, and thinking "yeah it's alright and stuff, not sure I'm really noticing much of an improvement though"... As time went on it felt like the machine was quite slow to be honest, no idea why until yesterday when I did a little experiment.
I was debating because of the above reasons selling my ssd on the bay to claim some money back etc, so yesterday I unplugged my SSD and put my old 600gb velociraptor back in, which I never actually formatted so it still had windows 7 on it etc...
I booted up, and waited, and waited some more, trying not to get irrate with this sudden clicking noise I'd forgotten about. I stuck with it and used the machine all afternoon, I had to install SP1 and a load of other updates and driver updates after 5 months of not being used, I went online, and generally used it for a few hours. Everything felt so unbelievably slow (it wasn't that slow, it just felt it due to the change).
I was getting quite frustrated, with just the few extra seconds needed to do some things, booting windows took a life time, and not just booting to the login screen but all my start up stuff, I couldn't quite believe I was having to wait to get things done, loading photoshop or dreamweaver took a couple seconds longer - but it annoyed the hell out of me. And all the time this damn annoying clicking sound that wouldn't stop!
I put my SSD back in. Everything suddenly felt 10 times quicker than it did before I did the swap, and I felt calm again
It was good. It made me realise I think, that people get used to the way something is and forget how it was. Just going back to my old drive has made me appreciate my SSD a whole lot more than I did when I first got it. I now know I couldn't go back despite genuinely wanting to earlier in the day.
More people should do this I believe, simply so they can appreciate what they have again.