One might be so bold as to suggest that aircraft like the Harrier are what we should be spending the lion's share of our money on.
Given that all of our defence policy (that i personally don't agree with) seems to be that we will always fight as a (small) part of a coalition, why bother with the 'mainstream' roles?
By having 'niche' capabilities up our sleave we can actually contribute meaningfully.
Incidentally, those JFH boys are doing a fantastic job. I doff my cap in their general direction.