Your're in Kingston, eh? May be closer for you to go to the GC in the Providence, RI area (can't remember exactly which town it's in)... they had a couple JEMs there recently. I live north of Worcester, so I'm usually hitting the Natick GC or Shrewsbury Daddy's.
And it's funny- the Boston GC is always loaded with PRS's and Strats, but it's pretty skimpy on the Ibani. I have noticed that every time I have gone to the Natick GC, they've had a couple JEMs... last time I was there (2 mo. ago) they even had a JEM10th and HAM on the top rack.
It's hard to say which one is better... I favor the Natick one though... seems to have more variety.
And I know what you mean about the Daddy's staff- they're awesome. Totally nice, helpful, and they actually know what a guitar is. They all look and come off as real musicians. The store is hit and miss though. Sometimes it's full of crap, and then next thing you know there's a ton of awesome used stuff there. They switch over their used inventory pretty regularly.