I have posted some of my comments about Davidsons.
I would like to add a general note:
Beware of distributors who also sell Retail. Some do it openly such as CDNN, Midway and Graf & Sons. Davidson's is Wholesale but appears to be moving into retail as well.
Other distributors do it on the sly, mostly via on-line and catalog sales under another name. It is usually easy to find the owner of a website. Sometimes the address is even the same as that of the distributor. Other times, you can do a whois search of their website to find owner names.
This is legal but understand that when your distributor does this he also becomes your competitor and will usually be hard to compete with.