Dont forget steem goes through decimation every about 3.5 years to limit the available supply and keep its value.
I think when considering the value which a coin can obtain you have to consider its supply limit I can't see coins with an ucapped supply limit or very high ones reaching extreamly high values per unit like doge or bcn or steem scarcity is a measure of value gold wouldn't have its value if you could easily find large amounts just lying around the place