this is a tough one, i do like saving a couple bucks, and i don't enjoy spending 30$CAD on a kilo of PLA or ABS from the local shop, however, i've never had a bad spool, unlike when i have tried to go cheap, not even ordering from CCP, but another canadian retailer across the country, botched vacuum seals, hours in dehydrator and still unusable.
trying to go cheap can sometimes cost ya more.