My Son is the Sales Mgr for one of the biggest "Men's Toy" Dealerships in Michigan so I get to see almost all of 'em....my XR600 just keeps thumping away so I see no need for any others...
I'm with you on the 2 strokes....and like you, I've had my share of "unwanted" noise in my "quiet zone" so I got with the neighbors and we all posted to keep MXers out....all has been well for a bit now.