Personally, I think Monero had a huge run already so cannot be considered a small market cap anymore. It sure makes more sense to invest in small caps but out of 1300 coins it sure is hard to pick the winner, not even talking about getting scammed by some dodgy ICO's... I do not think we have to go that far though.... Battle tested, a working platform with a huge potential - STEEMIT - loading up on STEEM is what I believe in among others... Neverthelles, portfolio should be diverse so if one fails you get recovered by others....