Scarcity is BS, people like to think in whole numbers, not fractions. If you make a coin that the average person has do deal with the concept of 0.00000934 to buy a burger, the thing will be a flop. It will only appeal to the exchange geeks like most of the alt coins.
Agreed. Scarcity can make NetCoin price too high in term of USD, which is too risky to everyone for trading and keeping it. It is not good for adoption.
As a novice guy, I like to keep some NetCoins instead of a fraction of it: 0.0001 NetCoin. Also, I feel safe if 1 USD can be exchanged for 2 NetCoins instead of 0.00012 NetCoin. Dealing with floating point is not comfortable at all.
However, I also agree that Scarcity can make NetCoin attractive to early adopters because it makes miners think that they are holding something more valuable. But when it comes to mass market, it is not a nice idea any more.