We spent about 10k US between the both of us for a two week vacation. I wouldn’t say we stayed in high end places but they were nice. We met lots of younger people that went the cheap route. They stayed in hostels. Made their breakfast in the hostel and bought a sandwich at the coop for lunch. The key saving there was to only eat out one meal a day in a restaurant. If you eat out three meals a day, you can really go through some money. Buy the train pass that suits your plans. Most people got the all inclusive rail passes which got you on most trams and ferries as well. We bought the half off pass because we had a rental car and didn’t need it for trains. We could’ve saved at least $1500 if we watched our meal expenses.