Hows about this for a thought. If anyone of us is looking to buy certain equipment - anything from VHF's to fenders, to chartplotters to TCW3 oil then we could post on a thread. After a set period of time , say a week, some kind vounteer or nominee could take the result and go to a number of chandlerys and say "I need 6 Simrad Dsc radios" (or whatever) "whats your best price?". If we can guarantee the multiple sale then we should get a discount. Probably far better than a general 10% off for RIB.net members as we could target the things we want to buy and maybe also the things that particularl discounts are available on.
'Course this requires someone to do the foot work - maybe the person who first posts the "anyone need a VHF?" thread. Perhaps it would work better with its own forum or as part of the buy and sell one.
Other idea would be for things that we all need like TCW3 (Ok those of us running 2 strokes) for someone to buy in bulk and resell to the rest of us?