At first, every altcoin isn't based on bitcoin's source. Improvements in security or attempts to build a stabilizing mechanism for the unit price, are the things that increase the usability of the coin.

Yes, I'm having fun with altcoins.
Hmm, and serious business. A couple of rowers who are famous for getting fooled, and a guy that tried to advertise bitcoin by promising how it will go into another bubble.
I mean, when listening to The Twins, then at first, I questioned on how the hell did these guys finish Harvard, but then I remembered, that they were pretty good rowers. And you don't ever never advertise an investment as an potential bubble. Bubbles are unstable and fragile investments that you should stay clear of. Only inexperienced fools play these games, because they prefer to count on luck, not skill. This is the true seriousness of bitcoin and business.