I usually only keep few coins in my portfolio because of two reasons. One I do not like getting spread to thin because I do not see it getting any better when you get to too many coins, there are few ones that gets pumped but usually if the market goes up everything goes up and when market goes down everything goes down as well so getting spread to thin makes no sense to me.

Second reason and definetly the biggest reason is that I do not have too much invesment amount and without the proper funds there is no need to invest 10 dollar into 200 thing when you can invest 200 into 10 things. So right now, I have most of my money tied at bitcoin, a bit on ethereum and used to have a ton of investment into nano but it worths really low now and now I am investing into spectrecoin hoping it would go up really high with the new v3 wallet and mobile app.