Just had 4 new tires mounted and spin balanced yesterday at a major tire co. Thanks to GY for helping on tires. Was charged less than 200 for mount, balance, and new valves. So thats less than 50 per tire. Think 35 is plenty for just one mount. I know the tow companys will accept credit cards. If the 150 is a standard fee I would suggest that GS check around before using the co that chg their customers this "IMO" Just remember that ALL my problems started with camping world which I now understand has merged with GS. Funny that I now have a problem with GSRS. Well thanks to all for letting me vent