Take almost any crypto that has been in the market for, at least, the last one or two years

The moment you compared coins with listings to Duecoin, which only lies and delays their listing, your post became meaningless.

Etherium was around 10 USD in 2016 and it is over 800 USD right now (8000% more=X80)
Litecoin was around 3 USD in 2016 and it now at 140 USD( like 4700% more=X47)
Ripple was 0.0007 USD in 2016 and now 0.75 USD (100,000% more=X1000)
Regardless of which coin you choose, (not all) but most of them would have yielded monumental profits as of today, the only factor being time.
You see my point

All I see is that you don't have one. Why are you comparing currencies with established market value and exchange presence to empty air that is Duecoin? That's like comparing USD to Monopoly money.