Come on guys, not like it would hurt anyone if you could buy pro tickets in the pro shop. If he doesn’t need anything and wants this option, it’s not like it would change anything for you. If you haven’t got anything that you want, you would still save your crystals for it, and if not you might just as well still save them or use it to buy pro tickets for alliance this way.
Frankly, it’s highly unlikely that they would implement it.
It would negate the need of spending money to buy the Pro ticket, unless it’s priced at a significantly high price. At which point it would make this whole suggestion kind of obsolete, I guess.