is it too late to invest in to Altcoin and bitcoin!!

Probably not too late to invest in anything.

Except maybe this same generation of miners, buying one now will likely never see a return on it.

No, but the thing is you have to be careful about where to invest your money.
I just recently pulled out my account after hearing negative things about bitcoin, I wouldn't want to take the risk. I have so many things to pay attention too, like which bark collar to purchase for my dog who's suffering from an excessive barking issue.

Yes, definitely.
Mining is best business ever !!