Its likely the in the long run no alt coin will out preform bitcoin.
I disagree, I think medium term bitcoin is going to dominate. But long term it's just another crypto and not really the best.
The way I see things ending up is there are many intermediaries like paypal, dwolla, something else etc, that mediate between cryptos and businesses.
Each coin supported by an intermediary would only be like 1% extra work (probably much less), so then people can pay in whatever crypto they want, the business gets cash and the intermediary handles all the conversions, security etc.
But then when you look at this situation what makes bitcoin a better crypto?
I'm still invested in bitcoin and want to see it do well, but I just don't see bitcoins first mover advantage keeping it dominant forever.