Yeah, I think so, better find a reliable way to make a profit rather than gambling it on a solo mine coins..
But the upside is higher if you mine a new "spec mining" coins isn't? weather it solo or pool
I think solo mining is very risky. It is much safer to use the services of pools. This increases the profitability of mining.
Agree with you. Solo mining is really too risky, I will always recommand mining pools.

And of course, you need to choose a coin which is not so popular but has potencial in the future.