>Vancouver, BC has barely any tech industry
http://en.wikipedia.org/wiki/Economy_of_Vancouver
Let's just ignore the fact that MS has a development centre in Vancouver, specifically because its easier to hire game developers here. Halo is being written here.
> British Columbia has one of the highest tax rate in Canada.
You may want to tell that to BC: http://www.bcjobsplan.ca/?facts=b-c-lowest-personal-taxes
>One of my Canadian friends told me that the 50% marginal tax rate started around $65k, although I haven't double-checked this for accuracy.
Your friend is either an idiot, or hasn't lived here in a long, long time.
http://www.knv.com/cms-assets/documents/40364-256654.bcperso...
>You can't compete between Washington State, with no state income tax, and Vancouver, BC
How's your health care? How much does that cost your employer?
There are many great things about WA. I love it. However if the state is going to retroactively go after companies, BC starts to become very, very attractive. We are not that different, tax wise. We obviously need to stay competitive.