Yes...tighter chokes at distance. You would buy one because you want a tighter choke for distance shooting at waterfowl, and by distance I mean within decent shooting distance...say more pellets in a hard to bring down bigger geese...Greater honkers, or it could be ducks as well. But I do not see $65 as all that out of line. I paid $60 for chokes 8 yrs. ago...Carlson chokes I believe they were.
And you should not use them with the flight stopper wads in those loads "Prairee Storm loads"

Unless you plan on using hevishot or something similar, I wouldn't invest in a choke for longer distance shooting. Steel is just not going to have the oomph to kill geese well at 60+ yards. Perhaps the new 1700 fps loads might give the necessary power at those ranges but I don't want shoot them! Gad, the 1550 fps loads are pounding me to death. And really, if you are concerned about $65 choke it seems to me you're not going to be forking out the big bucks for bismuth or tungsten shells.

For shooting at geese from forty to fifty yards, which really is optimal range for steel, a modified choke works best, or so I'm told. I am stuck with fixed full 3" mag 870 for the time being although it looks like I'll be getting something with less recoil soon to preserve my eyesight (already have multiple retina detachments and just learned my eyeballs are super thin as well).