Well, I'd pay 14SS for two Goryo, yes.
It's not like they ONLY provide Yan with 2 Chi and do nothing else all game ...
I think how much Chi you want/need in the first turn is a bit of a design philosophy with Yan Lo. I know lots of people are happy enough to collect Chi along the way and not jump through any hoops. But others, like myself, want him up and running as soon as possible, and maybe even Hunpo Assault first thing in the second turn. For that, you want 3 Chi first turn ...