Do you Portlandia-ites do much across the river in Vancouver?

[Kent Nielson]

I grew up in the Gorge and moved away for a bit. I always just lumped Portland and Vancouver into one metropolitan area. Now that I moved back to Vancouver I am realizing that they may be worlds apart.  I approached a friend who I actually helped flip a house in Milwaukie OR, about a deal I wanted to do here in Vancouver. He said he never crosses the river and really just stays in his little bubble of SE Portland. Is that Typical? Is there any point networking and getting to know people in Portland??