Back in 2015, tea Advent calendars were a rarity. But now most tea shops sell their own versions online or at their stores.
Spotted at Winners/HomeSense: The English Tea Shop Advent Calendar was only $12.99 CDN for 24 teas ($0.54 CDN/cup). I was thisclose to buying it until I realized that the calendar only contained 12 unique flavours. So I passed.
Spotted at Denningers: Twinings "Tea for Two" Advent Calendar was $29.99 CDN and offered two teabags per day ($0.62 CDN/cup). London Drugs currently has it on sale for only $19.99 CDN.
Screenshot from Davids Tea website
The 24 Days of Tea by Davids Tea was one of the first Advent Calendars that I've seen ($49 CDN). According to the packaging, each day contains 2 cups worth of (loose leaf) tea ($1.02 CDN/cup).
Citizen Tea's 25 Day Tea Journey is $55 CDN, but makes up to 100 cups of tea ($0.55 CDN/cup). So it's actually reasonably priced for sampling loose leaf teas.
For the last 3 years, I've been making my own tea Advent calendar by filling this huge stocking (a HomeSense find) with teabags.