I also don't use them, I'm hoping one day they might become a collectors Item and and by them in 2115 I might be able to put them on Ebay....
Point is well taken, a great marketing strategy would be to give away the best ball available as you said cost nothing, this would only encourage two things:
1. Wow! this is a great ball! I've been killing myself with those cheap .40c WGT balls gotta get these!
2.Wow! this is a great ball! gotta level up so I can buy these...
Nuff said.