There are many products that the health stores around where I live either:
a) don't carry b) too expensive.
Keep your options open and try searching online. I found Threelac on Ebay for $49.99 USD - which with the current dollar value is not bad even if buying from Canada - much cheaper than $99 CDN.
Most vendors don't mind sending item as "Sample" or "gift" to avoid tariff fees - you only have to ask, most are accommodating.