Talk:Warframes/@comment-11774442-20130708225820/@comment-7700557-20130708230903

There is no way to share, give or gift platinum. YOu can only get platinum by buying it with real money.

Rhino is relatively easy to farm, I don't recommend buying it.

As for the frame choice, look at their stats and abilities and choose the one that seems to suit your style best. I don't have any of those three yet.