I'm looking for conventional (not Airbnb, couch surfing, etc) accommodation in the Chilean town of Rancagua, for one person, for under 30 USD per night. Who knows any?
I recently (last month) stayed for a few nights at Hostal Estado (on the pedestrian section of Estado between Gamero and O'Carroll), cellphone: 82514972 for a few nights for 10000clp/night, just me in a tiny room with shared bathroom (bring your own toilet paper), but it was centrally-located and had good wifi. (I had a feeling, though, that it might have been a discounted rated and that she usually charges more, though throws in a meal for those paying more). I was also quoted 12000clp/night at Hospedaje el Cobre (firstname.lastname@example.org) at Freire 1050 (right across from the stadium), though I was inquiring for longish-term (so YMMV). The owner of that place said she had another place in town that started at 15000clp/night. Most of the other "hostales" (not really related to the youth hostel concept) seemed to be starting at 25000clp/night for a single.
If your stay was longer-term (like a week or more), you might be able to get a cheap stay at a "pensión", but they are usually more geared towards miners who come to Rancagua to work temporarily, or students who would never think to do something like drink or party. I saw several pensiones on Ibieta, as well as other places around the centro and near the Terminal O'Higgins (though the one I think called Magdalenda near the bus station also started at 25000/night short-term, IIRC). Some pensiones were also advertising on http://yapo.cl.
On Booking.com the cheapest rooms go for 42
USD, even if booking several months in advance.
On Hostelworld.com no accommodation is listen for Rancagua.
On Expedia.com only Santiago accommodation is listed.
Therefore I would say that no conventional accommodation is available in Rancagua for less than 30
Booking.com currently lists three hotels under 30USD (excluding VAT) when entering dates sufficiently far in the future. The cheapest comes in at 25USD for a single room, excluding VAT, at 19%, meaning there's currently one hotel (Hospedaje Angelica) available for under 30USD per night.