It's not just convincing someone to buy from you - there has to be enough volume available on exchanges to fulfill your order. I posit this is the real reason w

It's not just convincing someone to buy from you - there has to be enough volume available on exchanges to fulfill your order. I posit this is the real reason why nobody has tried attacking low difficulty coins. You probably wouldn't be able to sell off enough coins to justify the total attack cost. Not to mention the coins have to actually be listed on an exchange in the first place, and whatever exchanges they are listed on have to be legally available within your country or else the government will steal your profits and throw you in jail anyways. And the exchanges have to be legitimate enough for you to consider doing business with them or else you'll get Mt. Gox'd ;)