My nipples keep cracking
I've got an Ibis aluminum mtn bike wheel-set. It has asymmetric rims, and apparently it was built with aluminum nipples (not my choice). On the side of the front wheel that would require slightly longer spokes, I have now had two nipples fail. Oddly, it happens in the garage. My rear wheel is fine, as far as I can tell. The wheel-set has not been heavily used.
Should I have the wheel re-built with brass nipples, or brass nipples and new spokes, or cut my losses and get a new wheel?