I'm also wondering about buying some BTS to hodl. Price should go up in the looong run, but can still drop because of some kind of overbought situation. Now it can still go up to 1$ then drop back to 0.20$ then again go up to the moon.
If you want to hodl, just buy now and wait 6 months or just wait for an update of haejin, in other words wait for the price giving some more clues of what's going on.