Are we reaching a point where people will just see and accept them as a store of wealth?
Fundamentally, it's better than gold for that. But people (generally) probably won't consider it such until there's more exchange-rate stability.
The market picked gold (and a couple other PMs) as a store of wealth because those items had the best properties for it. Bitcoin has those same properties, but taken close to their theoretical extreme, *plus* excellent transactional utility. It's better gold with a giant kicker, but it'll probably take decades for the greater market to really select it as such. And on those timescales, technology makes big moves, so bitcoin may not exist as we currently know it by then.