using the beer as an excuse to buy good sour beer is still recommendedObviously you've never bought beer in Canada. Sours are practically non-existant. Some for Brett beers. But, I love Goose Island Matilda (my only Brett experience) so we'll give it a go.
I do think I'll do a very small starter (1L) just to see if there is any activity.
I apologize for inadvertently rubbing it in. I just read the "went to Canada on Vacation" thread this morning.
Befriend your local distributors and then start clambering for more selection. Have your homebrew friends do this as well. Take to Facebook/Twitter.
ALSO if you're patient, you can brew some damn fine sours at home as well.