Fair point. In some areas, I heard, it is also possible to get water delivered by a water truck which fills up the water tank of the house then. Might also be a solution if drilling leads to financial (or other) problems. But I don´t know the average costs of the water delivery suppliers. And probably also not the most environment friendly solution
I'll just flesh out my experience regarding water supply a bit, since there seems to be a bit of interest in the subject.
My place here is a bit far from town, but we do have PDAM (a water utility). The water is turned on in the evenings around 5 and turned off again in the morning at around 7. There isn't a lot of pressure and you need a pump to get it up to a cistern in the roof. The water is always our for at least a day after the first big rains of a rainy season. Sometimes the water is just out for no known reason, which has lasted as long as 4 days, if I recall correctly. Not having any water in the middle of the dry season was a big problem for my garden.
So, it seemed like a good idea to drill a well, with the water being cheaper in the long term and to having to worry about the utility going out. When I started asking around about how deep to drill, I just asked two local people I know, neither of whom own a well. They both suggested that they know someone who can drill a well, so I talked to the two prospective drillers. Both wanted around 800k per meter (just the hole, no casing) with one of them suggesting that I should drill 2 parallel holes to 30m and the other saying 40m would do it. Turned out neither of them was right.
Wanting to be a bit more through, I googled local-ish well drilling companies and started calling them up. Highest was 1.2 million per meter. Lowest was 900k reduced to 700k after negotiations. A couple of them said I would need 100 meters. Turns out the father-in-law had a well done recently in town (an hour away) and his guys would take a crack at it for 450k per meter. Hired!
They drilled down about 45 meters with lots of stoppage for water loss, this cost them both time and materials. They were frustrated enough by the water loss that they decided to drill down dry in order to enlarge the size of the bore, so they could install the casing to their current depth and stop the water loss.
They got their drill head stuck. After half a day of fighting to try and get it loose, they broke their pipe off in the well, still attached to the drill head. After asking to be paid by the day rather than the meter, they gave up and went home. Now I have a hole with a pipe stick in it and am still using PDAM. If the driller didn't lose money, he came close.
The next week when I went fishing at the local carp pond, everyone seemed to know that the only two productive wells in the area were at least 100m deep and that they had taken ages to drill with larger rigs than the one I had hired... Pak RT in particular, had rather a lot of knowledge regarding the subject. I would have saved a bit of time and definitely money by asking about a bit more before starting.