Davis instruments in bulk?

Over the next 6 months I may have the opportunity to purchase 10-15 Davis weather sensors (Vantage Pro2) to establish a mesonet. I'm looking for some good prices. A tech guy from davis suggested there may be some wholesalers out there who can beat their own direct prices. Could someone here point me in the right direction, or offer up some leads?

I haven't looked at Ambient Weather, but I use ProVantage Corp.


I forgot to mention that I buy directly from them or use their Ebay auctions. All their auctions are brand new items with a substantial discount.