Monero is in no position to scale up to actually handle all those transactions that you dream it will get, it simply does not have
the network strength and its growing blockchain size will form problems in the future with regards to full nodes :
All Monero managed to do is corner a niche dark market, where volume is heavily manipulated on Poloniex
(92% of Monero volume currently takes place on Poloniex).
Another thing to think about with Monero (and a lot of other cryptocurrencies) is sybil-attack resistance, here is some information about that :
https://www.youtube.com/watch?v=bz6rFZQywOEI do wish you good luck with your investment...