Let's do some math:
Mastercoin marketcap: 11, 394BTC
Counterparty marketcap: 11,099BTC
Both coins rely on Bitcoin blockchain.
Viacoin's current marketcap: around 1,830BTC (10 million coins)
610BTC for development purposes
Once BTCDrak implements the Clearinghouse protocol, BOOM!
At current price, there's still room for 6x to 10x