Stocks Doing Bad

Why do I always hear people say "penny stocks" are bad?
Actually not bad if you stay with them in the long term. It's almost a guarantee should wait years to move up. I think people are impatient and just want results immediately and some things in life do not go that path. That is patience. I have a lot of money in penny stocks, and even if I have to wait years to see the money that way. I'll have a lot prostate that time too.
You can read this article on "penny stocks" http://en.wikipedia.org/wiki/Penny_stock
Nissan GT-R@Stock vs Corvette Z06@580PS