Unless you are buying used gear down there (very scary thought), I think you will pay more. The cost from the manufacturer to the LDS will be the same, the cost of shipping and distribution cost (mark up from distributors) will be higher, plus you may take a hit at customs. If you want to save, buy online (I am flame resistant - lets not start another online/lds war and vote for world peace). If you want local support at home, buy via LDS but shop wisely. In any case try out the gear BEFORE your vacation. Saving a couple hundred and then blowing your vacation on a silly technical problem is unwise.