I'll most likely be buying more EOS. The community is infectious, it hits most (if not more) of its milestones, and Dan is ahead of his time - all great signs for the coin. The only potential downside is knocking out a giant like Ethereum, however it has been in the #9 spot.
I did some quick calculations last week while sitting in my Physiology lecture, and for EOS to reach BTC's market cap at the time of calculations, EOS (with its circulating supply) would have to hit around $249 per coin. If EOS can be successful in all its promises, I don't see why it couldn't hit at least twenty dollars - which, if you were to buy now, would be a nice profit!