You can now order supplies to be delivered to your FBO just like bulk fuel. The down side is cost - it looks like they're about twice as expensive per kg (v$9.97 delivered vs. v$4.89 at max discount), but that does not take aircraft rental/fuel into consideration. Convenience is also a big deal, unless you're like me and you don't care if you're making money or not as long as you're flying. Full notes linked below.
http://www.fseconomy.net/welcome/43-new ... y-ordering
New Feature - Order Supplies
New Feature - Order Supplies
V-3 CAT-11 I-11