What do you think about "ProExtender"

This thing applies a constant strectch (they recommend as much as 12 hours per day). Does it sound sensible? Is there anything similar that is as good or better, for less money? $400 is a lot.

Proextender site

Yes, I think there are much less expensive things on the market but I am no expert because I never used constant stretch devices. $400! For 400 bucks, you can get an excellent pump with a gauge, the best hanger out there, and still have money left for a ticket to a Disney land.