I don't mean to rain on everyone's The Block parade, but they aren't the best target I found. Especially if you use it to sight in your broadheads.
A simple $30 bag target lasts for about a year and 40,000 shots. At that point you slide it into a new bag for $5 and move the stuffing around a bit and it's good for another year.
All the archery ranges around here are switching over to 8" of layered cardboard with plastic wrapping stuffed behind them. If you go to a home depot or such and ask for their wads of plastic wrap, you can make your own bad target for a few bucks.
The Block's are great targets, but very expensive and very small. They just don't seem to be the best value for your dollar by a long shot, especially if you do any target shooting and try to drill it tens of thousands of times.
Cheers,
Pete