Wow...17 is impressive, and kind of answers the lingering question I've had of the highest number of zetas someone has done.
I know the feeling a little bit though...was looking to do combat analysis next, but then read that CLS has three (although depending on the date of his event, it may turn out to not be a problem for me).
But I also don't see myself as getting every zeta possible. I certainly have many abilities that could be omega, but I don't care. I save omegas for abilities on new 'important toons' and that works itself out. There may come a point in the future where zetas are less of a crunch.