Nope, it wouldn't take a whole lot to get the numbers to start going down (compared to other currencies).
Yes it is not the strongest currency, because not all people are using it, not all people know that this currency exist. So conpared to old currency like paper currency or even gold are stonger than bitcoin I think. But if everyone are starting to use this, I vet this will be a strong currency. Stronger than any other altcoins.