Did you get the boat?
I owned a 14.2 for quite some time. I can see the ease of use of the Expo, but the tradition OD fleet is nice.
One thing though. You want to drive a centerboard for a family boat? Everyone swims right?
I found my 14.2 to be fun at 8knots of wind. 10 knots and 1 captin and crew becomes necessary. 15 knots and 2 experienced sailors.
The 14.2 is fast, planes easy, and is a helluva lot of fun. It is a true racing dingy though, and should not be looked upon as a nice family daysailing cruiser.
Several people comment on how tender it is. I personally never turtled it. However, I filled the cockpit on a regular basis! I've personally clocked 9mph on the thing surfing, downwind, and I am not a racer, nor did I have it racing rigged.
14.2 with a keel? Different animal... Plus I'd strongly suggest more cockpit, like a 16.5... a 16.5 with a keel would be best, as long as launch ramp permits.