Why spend $1000+ on a custom bow when you can buy a Bear or Martin that performs just as well for half the price?
Last time I looked you can spend $1,000 on a Bear, and Martin has been working on closing the gap.
If you know where to look, you can get a custom bow for the same or less money than most any Bear or Martin--new, not used. The down-side is the wait.
I personally have never spent near $1,000 on a single bow (although I have owned several that retailed in that range), and I don't plan to. I don't give up anything in the performance, durability, craftsmanship, or warranty categories either.
I prefer custom bows due to my draw length. Most all "over the counter" bows stack well before I reach anchor. Besides that, I can get a bow made for me, much nicer looking (IMO), in my choice of several different options, for less money than a comparable "over the counter" bow. I have bows to shoot so, although I don't like to wait, I can stand it.
Chad