from what you said, i get this:
* buy a coin with a slick gui, because a nice gui is what you see as a good invest.
* it's a scam because of a high marketcap (which nothing else says then amount of coins * price)

what you will get is a scam coin which uses some other codebase and invests some money in design and marketing instead of something new! - Good luck with that!

What you are missing here is:
* the iota ico was a long time ago (yeah it was cheap at ico - but there was great chance of failure of that investment, too.
* a completly new codebase
* a completly new idea of doing it decentralized
* low protocol requirements, yes the gui is nothing "special" but it works and the thing behind is iota and how it will be a new way of doing all that world changing cryptocurrency things, perhaps one day on your toaster :O
* marketcap is just a figur - all iota * marketprice, you can't sell that amount for marketprice ... and you also cant buy it for marketprice !


so better move on - iota is nothing for you! - at least not until it's on your toaster