I know you keep the 10 but if I let's say upgraded to 10 then 100 then skygod it would take the 100kit away
50 Helps so much with /repair and /fly, the hostile mobs are cool as /pets, donor25 is alright but it doesn't give you what most people want.
I think that you would want to go to 25 then 50 to get the 25 kit. Out of both, 50 is more worth it because of fly and repair. If you are asking me which rank is most worth its money, it is definitely 100 because you have god, fly, repair, enchant, and a kit everyday with a diamond in it
I would do Donor 25 for a little while, then upgrade to 50. It'll make the experience last a little longer, which is what I'm doing