love the mini.
i work at a place where we use a mac pro, imacs, macbooks, and a mac mini in our daily operations. for normal everyday use, the mac mini works great. i'd say 99% of non gaming computer users would be just fine with a 1.83ghz mac mini for their computer needs. obviously it's not going to work well for video editing or anything more than children's games, but for basic email, internet, itunes, and even office and iwork applications it's been fine for me.
i'm very impressed by this little machine and i have recommended it to tons of friends as a first step into the world of apple. if they discontinue the mini, apple will really be shooting themselves in the foot. i'd bet a lot of people graduate from the mini to the imac and apple needs to keep a lower cost computer in their line-up.