I constantly buy new, in my opinion, perspective coins. I think investing in altcoins may provide us with good income as well. Sometimes you can find quite interesting coins that just appeared on the market.
You are right but I do think what gives an alt it's success is not a good idea but work that has already has been done partnerships etc. More that anything else gives a better look how to coin will perform not taking into account market manipulation I do suggest looking into ICO's like lympo that have amazing partnerships and work ethic.