The Vectrex was and still is an underrated system. Its fans are dedicated, verging on rabid at times. So it no surprise to me that a copy of Mr. Boston that includes the Cart, Box, Overlay, Sleeve, Insert, and Instructions, would be going for over $1400 (and climbing) on eBay. If you are a collector and have the dough, why not check it out.
Vectrex Mr. Boston Boxed [@] eBay