Interest in BTC will return when it dips below $200-300. It's been exposed well enough that CNBC and FOXBusiness were reporting on price movement daily. If we're having a hard time keeping up $500 with the exposure BTC has had over the last 12 months, you better believe the interest from small money has sufficiently dried up. And that's scary, trust me. Before the rally, most people never heard of BTC. I would say that has completely inverted and yet, still we are entirely dependent on action from China to sustain current valuations.
give it some time, when i first heard about bitcoin i didn't invest in it immediately either, and pretty much noone does.
It takes a while to realize the potential, and then it takes a while to realize you should not wait too long with buying.