I will tell you something interesting. Last summer DH and I went for work to a place for 6 weeks which is quite underdeveloped. No real Internet. TV in a language DD doesn't speak. We had no childcare so the grandparents came for 3 week stints each. We were a bit worried about what DD was going to do. Packed books and toys as much as we could. I did think maybe this was the time to let her have the IPad so she wasn't bored. It gets VERY hot in this country in the afternoon and you have to stay indoors and I worried that DD might drive my parents a bit crazy.
Anyway turns out I needn't have worried. The grandparents did their bit, we went swimming as a family and DD just pottered, she made friends with local children (none of whom had seen an iPad) and even learned a smattering of their language.
Guess who went mad sans technology? My in laws and my parents. They missed their TV serials and they said with some regret that they realised that they had totally lost the habit of reading in the evenings rather than sitting in front of the TV. DD on the other hand was fine. If she was bored, she invented her own games and entertained herself. It was a real eye opener, albeit unintentionally to how much we (and even we do that despite being sans technology) over stimulate our kids.