I guess part of the answer must be that it's harder to get rid of them, than just to keep them.I think the only thing keeping the Gurkhas going is the battalion in Brunei paid for by the Sultan. Twenty four years after the handover of Hong Kong and 73 years after they became part of the British Army it is time to let them go. They are probably more expensive than British soldiers now and we are restricted in a lot of scenarios where we can use them. It would be an ideal time with these latest Defence cuts. We seem to be able to recruit all the soldiers we want from the Commonwealth when we need them anyway.