Overseas postings are not all about the financial rewards. My 3 years abroad taught me another language, that British is not always best, just how sh1t the NHS is, broadened my outlook on life in general and made me a number life-long friends.
I certainly couldn't fathom out why I was getting so much LOA, I just shrugged my shoulders and put it in a savings account. I also flogged the tax-free car some ancient NATO regulation devised in the aftermath of WWII said I was entitled to, to buy the holiday of a lifetime for my family.
Anyone who doesn't want an overseas tour should seriously think about why they joined the Service and perhaps think about a career change.