I switched from limited to production recently and plan on staying here for a while. For a few reasons:
Cost: the wife and I haven't been married very long and while we are doing pretty well for our age/stage of life it is nice to be able to pick up a stock gun, mags, and holster and be competitive. We are both shooting m&p's so we keep the same mags, parts kits, etc... for matches.
Multigun: with 9mm being competitive in most multigun matches there wasn't as much Incrntive to stick with major pf, plus for multigun matches my 9mm with extended base pads hold more rounds than my .40 did
Ammo: if I don't have time to load ammo or have it loaded I can stop and grab ammo about anywhere without looking for ammo that is loaded long.
I know most of this could be argued but it is what helped me make the move to production and while I will probably switch back to limited at some point I'm happy in production for now