I am member of a local archery range. We have 5 bags, on our main range. We had the Delta speed bags, they lasted for the past 4 years. From May 1st till September 1st, I would bet that there are close to 7-800 arrow shot each week. We rotate our targets every month, and turn them every year. This helps them from getting shot out. I have no complaints about these bags, as they held up much longer then we thought they would. Arrows were always a breeze to pull out.

This is a photo of one of our bag this spring after 4 years of use.
This year we have replaced 4 of our 5 targets with the Morrel outdoor range bags($109). They are a lot bigger then the delta speed bags. We have had them for a month now, and have no complaints, they are easy to remove arrows from, and do a great job of stopping arrows. I have to say I really enjoy the 8inch target face with the 14 smaller targets surrounding it. Makes long distance shooting easier, and gives lots of options for @ 20 and 40 yards. If you buy this target, you have to build a sturdy stand for it because they are heavy and awkward 30"x28"x12").
The fifth target is a morel bone-collector target, this is a good target for the $69 it cost at scheels, however at 40+ yards its hard to see the targets.
One thing to remember is to keep a block around for shooting broad heads, as they will tear apart the bags quickly.
As you can see in the 2nd picture, our bag stands are two 4x4 post sunk into the ground 30" apart, we have 2x4 headers at the top and just below the bags for support. Also installed the roof covers to keep the sun and moisture off the bags. Each winter we store them in a shed.
Finally, I have shoot both the yellow jackets (good target for the money) and hurricanes (wouldn't buy again, horrible to pull arrows from).
Esox