I understand the comparison to things like stamps, coins, or other collectibles, but I'm not sure that I believe the same sort of fervor could ever be created over a digital collectible of this kind.  Other digital collectibles (video game cosmetic items in Dota2, digital card games, etc) have some kind of uniqueness, usefulness, or difference from other collectibles of the same type.  By definition, every Pulsar coin is the same, and they exist only to be collected.

It's a fascinating idea, though, and a cool potential paradigm shift for crypto.  Good luck.