I have the same tractor - B7500HST. I have a front blower;
I took delivery 02/2001 and it worked great (in CNY); very
capable machine.
I have a 600' gravel driveway and a 50x50 turnaround.
The dealer I bought it from loaned me a
B2400 with a 3pt
snowblower until my tractor came in. It worked good, but
it's definitely much easier and quicker to use the front
mount. I think it's worth it to pay the higher price for the
front mount. Snow removal was my primary reason for
the tractor; if I had been able to stick a plow on my
Expedition, I would have done that and not even purchased
the tractor (mainly because of cost).
The 3pt blowers seem to be physically larger than the front
mount, but the front mount handled everything perfect.