One of the reasons I'm attracted to Quazarcoin is that it has a slower emission curve than some of it's competition. Bitcoin was designed for the long-term and has a slow emission curve and Quazarcoins curve is similar but slightly slower. Some other coins, have a much faster curve and what's going to happen when the coins are all mined? Transaction fees may not be sufficient to attract miners. The developers might have to modify the coin to keep the network functioning. We will see what happens. The design of some of the other coins seems rather short-sighted to me.