I'm sorry if you took offense, I was inferring that perhaps your friend was maybe endowed with a little too much $$$ for his own good. If I'm mistaken, I apologise, though, to make up your mind up about a bowling ball in 2 weeks still rings of ignorance to me. With the variety of drillings available, & even surface changes, there is no way someone can justify getting rid of a ball 2 weeks after they've bought it.
If you'd like to continue this conversation elsewhere, perhaps MSN is the place, because an "argument" like this can only be detrimental when posted in public.