Just finished summoning my last 400k metal eggs I had left. Up to 15 Burst Pots for OK! As for who I will be shooting for in the future. 2 Eileen...2 Tidus...2 OK...1 Cloud. 1 of each of the 5* Veritas and then I don't know outside of those. Oh and Rikku of course.
That's like the yearly budget of a small European country.