Hi Ray, I have a Delta 40-680 P-20 that I bought in 2001.  It has about a bazillion hours on it. I have had no mentionable problems with it, just general maintenance stuff. I have replaced the drive belt  and the tension lever once. I think it was somewhere it neighborhood of $15.00 for the parts. I believe it is a good saw. Delta has a web site (real handy) if parts are needed. Rick Hutcheson has a web site with alot of scrollsaw information including different brand reviews. Hope this helps ya.

                                                                     Good luck, Stoney

P.S. Rick also has a maintenance video on the P-20 I have used. Very helpful.

 

http://www.scrollsaws.com