I have an opportunity for a few dollas more to get a whites prism IV with a pin pointer vs a ace 250 am I stepping up or breaking even detector wise (never mind the pin pointer)
Definitely go with the Prizm w/ Pinpointer. Not only do you get that, plus you get a Warranty PLUS Metal Detecting's Best Customer Service company; White's Electronics.
I have heard a lot of Good about the Ace 250, but compared together, you can't go wrong with a White's.