The fact that Tone Vays gives so much attention to steem proves that steem is different than all other altcoins and that it has huge potential.
He seems a bit scared about his bitcoin investment, I think bitcoin and steem will coexist. I don't see steem as a store of value because it doesn't have a limited supply. From what ned said the supply is being cut by 0.5% every year for 20 years until it reaches less than 1% inflation. In my opinion witnesses will have to revise this inflation schedule when more users use the site. I don't know how the steem blockchain is going to pay millions of users ( possibly) with less than 1% inflation, the price would have to be ridiculously high. All in all I think both bitcoin and steem have a bright future ahead.