Me personally would not go to the IoM TT, when it started the bikes were capable of about 25mph downhill with a tailwind, they're now maxin out at 200mph, take it from me at 150 odd on the m5 the lanes start getting narrow, a slight twitch at that speed and you wander more than a few inches, these guys are out to beat each other, pushing themselves to and beyond the limit, for a deviation they can and do hi telegraph poles, stone walls and other imovable objects, its a sport, they should not have to pay with their lives.
Why cant the IoM tourist board do what they did in Jerez i think it is, where the locals built their own international race track, now that would be worth going to the IoM for.