I always get attracted to a Gilson since I nearly fell deeply in love with the one I had before someone loved it more than I did.
This one is listed for $650 with a mower deck and snowblade. It is an S-Frame, which means it is a tank. If it runs as good as it looks, it has life made.
The price may be worth it for the deck. New belts can be hard to find, unless they happen to cross to a standard inch scale belt.