What's the elevation of the plot? I think the town center is only like 700-800', but it goes up quickly heading towards Stratton. Retention will be really good there, maybe not MW Maine good, but still impressive given the Latitude and longitude. Its a good spot for any coastal type of storm or any E/SE flow event--which most synoptic events are. You will lose some upslope component as you are starting to get further away from the Spine in Jamaica, again depending on where exactly it is. If your near town center or east of there, snowfall totals would drop off compared the west side heading up in elevation.
But if you are looking for 20-30 acres and cutting down your driving distance, than options get limited a bit. It's a good spot, you can cherry pick better ones in SVT if you had no acreage limitations, etc. Jamaica is is really nice spot distance wise from Stratton and Magic..and even Mt Snow to the south.