I've never really understood why the speed of light singles is an issue for ATC'ers at large airports.
Yes it would be, if you think in terms of aircraft coming down the glide slope following the localiser, but light aircraft don't have to do that. We can quite happily orbit on base, then when released from the orbits, we'd have a very short final. We'd be only on the extended centreline for a minute of so, and at that speed should make little or no difference.
Is it something to do with seperating IFR traffic from us?
As for the issue of ATC costs, ATC is largely there to protect commerical traffic. It's not their for our benefit, although we do get a benefit. If there was no commerical traffic, there would be very little ATC. Why should we be asked to pay for a service to protect someone else?
dp