One of the biggest rifts at my club is the tennis vs golf conundrum. Golf by far crushes tennis by importance and income, yet the tennis players pay no fee other than their dues to use the courts. Certainly doesn't seem fair to pay for play at all times for golf if there is a walking fee vs free to use tennis courts.
Assuming that the dues are the same for a golf player and a tennis player...the golfers should take the money and run. The operating costs of the tennis courts are - almost certainly - less than the annual cost of maintaining a single golf green.
While I agree mostly with what you're saying, Raynor, the cost of resurfacing tennis courts is far greater than most would anticipate. I sit on the Board of Directors for the city Recreation Department where I live and have also designed several athletic facilities professionally over the years. In my tenure on the Board of Directors, we have resurfaced our 8-court tennis facility twice. The rubberized cushion poured on top of asphalt or concrete is extremely expensive and doesn't last as long as one might think.
Much like "fieldturf" football fields, the chemical compounds are broken down by direct sunlight much more quickly than the sales professionals would lead you to believe. Which is why warranty's are generally 25% of what they claim the life expectancy to be. Our tennis courts cost about 18k per court with a typical life expectancy of 4-6 years.