Using services from a retailer that did not sell you the product generates income for them, so why should they care. If it is a warranty issue the manufacturer reimburses the retailer to provide the warranty service, so it is a win-win.
On top of that, I would hate to head out on a vacation thinking, well I can just get it there only to find out it is not available there. i.e out of stock, limited selction, etc.

Play, Love, Share and Enjoy - it doesn't last forever make sure you get the most out of it.