I walked by one the other day at OfficeVomit while I needed to waste 15 minutes. I noticed how inexpensive they are. I'm just about through with windows machines in general, so the fact that they are so easy to afford (most under the $200 mark before tax) makes them a relatively inexpensive pool to jump into for a first timer.
Thanks for this review. I'm now, almost certain that if I have an extra $150 or so, I'll probably pick one up second hand or refurbished.