I just ordered the TX used for $130 (including a 1GB memory card and accessories) -- thought I got a good deal. If I were a student, there's no way I would invest hundreds of dollars in something like that... I made it through nursing school perfectly fine without one as did all but 1 of the 80 people I graduated with (only one student had a PDA in my class). Sure, you have to carry a couple more books, and physically write more down, but having to write things down help you remember...

I can easily see why they're fun to have and convenient, but personally as a nursing student I found a lot of other uses for that money than a PDA. Still, if I were a student I'd find one used (craigslist.com or ebay.com) over buying one brand new -- the only perk to getting one new is having the receipt and (sometimes) store warranty.