But no one is going to sell their iotas, probably a lot of people are thinking that they can have a gold mine in their wallets if they keep holding their iota's for a long time.
maybe there are a good sellers, but there are 0 chances to see a seller in his area, or at least in his city.
you can't buy IOTA directly with cash unless you find someone who is willing to do the trade with you
Iota is listed on binance and bitfinex, if you ask me for an advice, i would suggest you to use binance, bitfinex is full of problems right now with tether.
and who knows what can happen with this exchange? It is pretty unsafe to have your coins in there.