I could see that!
However, how well it works depends on the size and culture of the smaller places. I live in Canada, where "small" can mean 200-400 people an hour or two along an empty highway from anything bigger. If you find tango there – which you might, because people from cities or who have traveled sometimes retire to such places – it's a couple of people who drive to the slightly bigger place, along with a couple of people from 5 or 10 other small places, a few times a year. I suspect that is far from the situation you are talking about!
This suggests a very different situation from what I'm talking about. For one thing, it means you have a way of announcing yourself! I've been in places where there's no way to know there is tango until you're at the only café in a one-hour driving radius and someone overhears you say "tango." Certainly, you won't stay with anybody until you've already made contacts.
I suspect that the situation in Europe – where, to Canadian eyes, the distances between towns are minuscule and it seems like every bit of land is settled – isn't like what I described above. So, please look at my earlier post through my eyes:
Here, tango largely lives in cities of 2,000,000+ people, with a modest presence in medium-sized cities in the 400,000+ range, and a few tiny communities in small cities the 100,000+ range. Mostly, you dance in cities, not towns, much less villages or hamlets. With the distances involved, it takes enough time and money to move between these that you'll probably favor the bigger places, as there will be more to do than dance.
And did I mention that I'm envious of Europeans, who seem to be able to find a good level of tango a short, inexpensive drive or train ride away? (The equivalent here being c. 5 hours and 250€.)