Stamps, trophies, and achievements.

[Jizz_Beard_thePirate]

The difference seem to be that achievements and trophies gives u 5 seconds of bragging rights to ur friends where as stamps are actually somewhat useful outside of bragging rights since they are drawings which u can post on miiverse and add ur own drawings to those pre-done drawings

But I guess bragging rights is more important than stamps although I do think Nintendo needs to improve stamps in a way so that you dont have to load up the game in order to access them. Like if they were stored on ur OS or something where u could have access to them all the time, that is one place where stamps would become a lot more viable