Oh yeah. I've purchased three different cases for it: a Fortte leather glove fit case (which I abandoned after a couple weeks, expensive experiment), a Seidio hybrid case and then I have a black OEM skin. I typically go back and forth between the last two.
It also has had an Invisible Skin screen protector since the first week it arrived -- though I think I had to wait a few weeks for my first Curve because I bought it straight away.
If it's raining outside, which it does often round here, I put it in my jacket pocket and zip the pocket up. I hate getting even a few rain drops on it.
With my previous BB, a 7130, when I got up in the morning I'd grab it and read e-mail while brushing teeth, getting ready for work, etc. Now it never goes anywhere near where there might be water.
At work, my Curve sits on its very own little chair just visible in my peripheral vision.
And I also constantly wipe it down. Yesterday when I was doing a battery pull I was very sad to see the battery door has gotten a bit scuffed up. There are three tiny hairline scratches. Awww.
Yeah, I can relate a little bit.