just my opinion here....
i beleive that one should buy products from a company whose livelihood depends solely on that type of product. take for example sony. if sony builds a lousy cordless phone line it wont matter too much because their tv's may pickup the financial slack. now take a look at a company like nikon. if nikon starts building lousy cameras, guess whos out of business!
with that being said, bounty hunter is owned by a parent company that owns several metal detector companies. if bounty hunter doesnt do too well, fisher (which just got bought up) might pickup the slack. if you have the budget for it, i'd steer away from bounty hunter and look at whites, minelab, garrett or tesoro.
tesoro has some very affordable detectors available. they are made in USA and have a lifetime warranty. some tesoro's dont have as many bells and whistles and some dont even have displays. you rely solely on tones to figure out what you've found. some folks (myself included) find it more relaxing to just listen attentively to the sounds it makes than be looking at a display all the time.
before you spend your money see if theres any detectorist's in your area and see if they'll let you spend a little bit of time with their machines. there's a section on this board that's setup by state, post something up on there and see if someone steps up and meets up with you.