I don't think so.. It seems to be the going rate for this type of thing both online and local prices.
Actually that is VERY cheap. Please make sure they are doing this properly. Even my wholesale cost for this is more than what you're paying. I have seen some work done by the "on-line" shafting shops and it can be well.... sub par at best.. The last one I came across cost an additional $200.00 for truing, properly re-fitting and facing the coupling, the set screws were not spotted the keys fit incorrectly and after all that it was a sub par shafting material and not AQ22.... If this is a reputable shop you got a heck of a deal..
You want:
Aqualoy 22 Shafting
Coupling fitted & faced (must be a light press fit if straight coupling)
Shaft run-out checked and under .003"
Key's must fit snugly
Coupling end key should be SS
Prop end key should be brass
Set screw holes must be spotted
Should come with new prop nuts
If going new a split coupling is a very nice option..