That's interesting to hear about Switzerland, but it's actually banks in general. I had to support IE8 up until recently on various financial services websites for the company I worked for not because of any actual customers but because our partners at various banks in Australia are often still using XP and even those that have migrated to Win7 are still limited to IE8.

My friend works for a large US bank and told me they are generally limited to IE8 but he had "bribed" the IT department to give him an exceptional upgrade with some fine beer.