Radium [RADS] will implement Smart contracts based on nStratis protocol next year and sitting @ mcap $18m and cur price 5$ having ONLY 3.4m coins current supply.
The main benefit that's the core Radium protocol will be easily maintainable, as well as easily extensible and auditable by the expanding community of C# .NET developers. New features which do not require integration into the core network can be developed using smart contracts.
it's 15$ now, already did x3 since your post. There is a hard fork coming in february. Price will pump more before.