With all respect, Garland is way out of line on this. Many years ago, my club examined the dues/"trail fee"/cart fee issue fairly comprehensively. Our situation may not be typical..... we have a large number of "seasonal" members who play frequently when in town but who live primarily some distance away.....
Our analysis started with the "required revenue" (fixed cost, debt service, and basic maintenance). The first reduction was then cart revenue (calculated at 25% return over fully burdened cost), then dues. The "service" or "trail" fee was then calculated to cover the difference.
In no way can it be assumed that "Cartballers" are subsidizing walkers (or vice versa). In our situation, the cart users are paying a very good return to the club for the use of a cart.! A nominal fee per round to cover the cost of fixing ball marks, working bunkers, filling divots, etc. is not out of line for playing a round of golf.
Jamey