It could be that they are more focused on mail order. A lot of places like that (iPd included) do 95% or more of their business via phone/internet. A side effect of that is not much focus put on the showroom. Not saying that's the right thing to do, but likely that's the case. Ignoring you when you went in is just stupid and disrespectful of them either way though. I can only imagine how disappointing it would have been to go in there and have that happen.
If you ever come to Portland let me know in advance & I'll load up our showroom with 240 stuff and take you on a tour of the building myself