The autoblow and priceless are both garbage quality and either can't provide real pleasure or break right away. (sure you've heard of autoblow, this is priceless link
). There is the Venus 2000, which sounds great if it werent for the price--cheaper to buy a masto sleeve and hook it up to a cow milker (as long as you know the power, and don't rip your johnson off). There are some interesting japanese models, haven't tried any yet though. The venus is the only really unique but awesome one I've found, the rest are cheap novelties like the autoblow or piston fleshlights like the priceless.
If you're going to go for fleshlight pistons, your best bet is to shell the extra cash and buy one of the high end models used as female fucking machines. Practically all of them are set up for fleshlight attachment, and they have the power and durability to keep things exciting. If someone can invent one of these with an extra coupling that goes between machine and fleshlight that allows for one way suction (sucks on the upstroke, but releases pressure again on the downstroke, kind of like the blowoff valve of a pressure cooker)....then hot dog, we'll have a weiner!
Fleshlight does have a piece of furniture the case slips into securely BTW, not really hands free but at least more exciting than just whackin at the computer desk.