When you want to leave the rat race behind, you have to be willing to some degree leave the stuff that the rat race produces behind too - that being said you can actually find a lot of creature comforts here to spoil yourself when you feel the need, so long as you're willing to PAY - good wines, fine cheeses, nice chocolates, fresh vegetables, gourmet cooking stuff, and even vehicles (though I do not advocate the latter) ~ I mean how did all the SUVs, Polaris, Jeeps, Mini Coopers, etc. manage to get on the island??
Good Luck!