I've seen in my travels a few residents having their sidewalks cleared of snow by machines that were obviously way to big to be doing that type of work, I assume that these folks are out trying to make a couple of bucks and I say more power too'em. That's capitalism at it's finest and I hope they do well.
But a word of caution to the home owners, some of the equipment I've seen doing this work is much too heavy for the average sidewalk, especially some of the very old sidewalks in town.
Anything much bigger than a lawn tractor can and will damage your walk and curbing, you might not see the damage until the snow completely clears and/or it completely thaws or maybe even this summer is when your walk/curb start deteriorating, cracking and crumbling. Notice all the new pot-holes after a snow and a plow job?
Let the tractors have the driveways and parking lots, give an ambitious youth with a shovel some spending change to clear your sidewalk(s), steps etc. they can use the extra change and wont damage your property. Plus that smile you'll put on a young persons face is worth a million bucks for the measly 10-20 bucks to shovel all that snow.
Damn Tractor Stole My Snow