why iota marketcap so high?
and same technology byteball marketcap is so low???
more marketing perhaps (not perhaps...definitely). Also (not pointing any fingers) a lot of coins are artificially pumping the price through "fake" transactions between the same wallets, just to create volume and impression of demand.
Seriously, when the volume is so low, the price is meaningless and can be manipulated so hard, it's not even fun. And this is true for most coins. In the long run 90% of these alts will go to 0 and only a few will actualy get used in the real world. Hopefully byteball is one of them because of it's technology. This should be the only criteria when you decide to invest. Everything else is like playing the roulette.
Also, a high market cap isn't necessary good. It only means you are to late to the party. IOTA has a 2 bil market cap. How much do you expect it to grow in the next 10 years? 10 times? That means to 20 bil. Perhaps, but only if it goes mainstream. A platform worth 20 billion dollars is huge, and personaly I don't see many chances for that happening. By comparison take byteball: it's currently worth 160 million. It would grow 100 times to reach the same level, with less risk (lets face it, IOTA has some serious technical challenges and risks ahead). 10x vs 100x payout.