As a fellow Canadian, you're probably aware that you'll get nailed on import duty charges, shipping and currency conversion if you order a new bike from the US.

Others have already noted--State's reputation isn't strong around here, but the Bianchi Pista has a loyal following.

Is the Pista your size? For context, there's a guy here in Halifax that sold his used Pista for around the same price (maybe more), so $600 CDN for a fully built bike is reasonable.