For me it's well worth the price for the convenience. I have a HSS (I forget the model) that is basically just a vest with the harness built into it. There's no untwisting it, stepping through loops,, trying to pack it so it don't tangle,, etc.. I literally put it on like a vest, buckle the legs and I'm on my way. One side is camo for bow season. It's reversible and the other side is orange for rifle/muzzleloader season.
In my eyes, the convenience of it is priceless. I'm on my tenth season with it.
If I'm hunting on a day where I think I may shed layers I just put it on over my base layer.
Think of it this way.... it may cost you a little up front, but then it's done. You don't have to buy one ever again unless you put on or lose a bunch of weight.... or if you actually start to fall. They advise replacing them if they are strained I believe... I could be wrong.