Buying Tequila in Tequila

Around 2000, I drove from Vancouver to Troncones via Tequila. I spent a couple of nights there. While shopping, I found shops that sold only “bulk” tequila. There were spigots on the wall with labels naming the tequila. I sampled several tequilas, including a Don Julio and these were the real thing. I bought 10-12 litres of various tequilas in new, white, one-litre bottles at remarkable prices. These shops were not “hidden”, they were on one of the main streets with signs.

I was in Tequila briefly around 2012 and I didn’t notice any such shops.

Does anyone know whether it is still possible to find such bargains in Tequila?