I don't remember exact worh of 1USD, but I think it was something aroun 30 crowns in 1993. Today it is 21-22 crowns.
If you were lucky enough and you could buy the new car from Škoda, you spent 90k Crowns in '90s and it was 180 pcs of 500 crown banknotes. The cheapest Škoda Fabia start somewhere 330k today, so you need only 66 psc of 5000CZK bills. But I think nobody pays new car in cash ;)
We are quite dependent on the Euro, but I hope we will keep Czech crowns as long as it will be possible ;) I think the common currency could only work in similarly productive economies. It doesn't make sense to have same currency eg. in Germany and in Greece. Just my opinion ;)
Oh double WOW! That means the Crown gained value against the dollar over time!
As for buying cars with cash, just ask my dad. He financed a car once, and said never again. But even though he likes to pay for his car all at once, I don't think he uses actual cash, but something like a bank transfer.
Hehehe, "as long as possible" means as long as you want. After all, it's 100% the decision of the Czech republic, and no one else, to adopt the Euro or not. In Germany it's quite common to hear the same argument you made, that it doesn't make sense to have the same currency as Greece. But what's the next thing Germans usually say? Oh, that they had no choice in the matter, and that it was France that forced Germany into the Euro. Yeah, right! And if you look at Sweden or Denmark, I don't think they ever intend to join the Euro zone either. It's totally up to them.