- I don't think that ETH specifically is the next big thing, just blockchain technology like ETH in general. There is lots of competition, both on top of ETH as well as different approaches.

- The price itself isn't strongly correlated with usage or value. Sure it's used for gas, but the price is mostly driven by speculation for now. So you never know what's "already priced in"

- Timing is hard. The space is still extremely nascent. There may very well be a few more crashes and cycles before it all settles down and becomes more mainstream. The timeframe here could be years. I think it's totally possible that crypto prices crash 90% tomorrow - but it's already too big to go away completely.

So I don't really have an opinion on the current ETH price, I'd just be gambling.