SVFR
The issue for TBI is not just how much the ATCOs providing approach services into Luton are paid but also how many people are being paid to do it and who by.
On a more general point, TBI, BAA and all of the other airport operators who contract NATS to provide their ATC have a fundamental problem because once you contract NATS to provide ATC the decision is not reversible. If they decide to end or not renew their contract with NATS who will provide their ATC? If they want to do it in house, how many staff will leave the relative security of NATS to work for an airport? If for example you currently work at Luton, would you opt to work directly for TBI who admit that they don't want a premium service, or at least they don't want to pay a premium price. If you want a contractor other than NATS, who is available who can demonstrate a good record at one or more of the major airports and who can guarantee the supply of sufficient staff to keep the contract running?
I don't know if TBI are unhappy with the NATS service and want to take ATC back or if they are just unhappy with the price. It is possible to provide an excellent service by running an in-house unit and there are numerous examples around the country of this. However, once the decision is taken to do away with an in-house unit there is no turning back and little opportunity to then try to negotiate over price.