Well, I hunt deer with dogs, and I can assure you that the Alpha is worth it's weight in gold when a hard driving dog really gets wound up.........it'll save you hours of worry and a lotta gas as well....Far as Conkeys goes, have friends that use the co. with complete satisfaction....to the best of my knowledge they're reputable.
I've utiilized Outdoor dog, in Chesapeak, Va....and truly their service is outstanding............they take trades and offer used gear as well.
Incidentally, first 100 I had was a used one....failed and I sent it to Garmin and they sent a re furb for a darn good price.