I got my 3800 a few months before the 3880 came out, and it has worked for me very much as it has for Kirk. I use it sporadically, sometimes going a couple of months between prints. I did have one clog a while ago, did the only "Power Clean" I have ever done on it, and it has been perfect ever since.
I live in the relatively humid Northeast (U.S.), turn it off if I don't expect to print for a while, and cover it when I do turn it off. My house has whole-house air conditioning and humidification, which probably helps. If it ever dies, I'll get a 3880 (or whatever the comparable beast will be by then).
Eric M.