I would check out the Converse outlet store if there is one just across the border. I found my pair of x-hi Chucks at the one in Las Vegas for $30USD
Your reg. hi Chucks can be had for $10 and up.
Edit: Rarer Chucks can be had for cheap on eBay too. I got a pair of "Made in USA" Chucks for $12 + shipping. Since 01, Chucks have been made overseas.