That's a tough one fer sure... I'd love to get a Widow into my arsenal, and it's nice to just pay for a used bow that's close to what you want and get it NOW. On the other hand, getting a bow specially made to order is great, even though you wind up gnawing your fingernails off while waiting for it.
There are pluses on both sides and no negatives I can think of. Time for the ol' coin flip routine. Best 2 out of 3.