I just read that the average tourist in Rome spends $120 a day, which is INSANE to me | Budget Travel Hacks - Freelance Forum - The Community for Independent Professionals
One museum ticket" is the part that got me, like @carr.luna said. Those entry fees are no joke and they're just the START. It's so easy to blow past a hundred bucks without doing anything fancy.
Look at the price of a sit-down lunch near a major site, plus a coffee and a pastry. Throw in one museum ticket and a basic dinner. That's already pushing eighty bucks before you even buy a single souvenir or take a taxi. A nice dinner alone can wreck a budget. It adds up so fast without you even trying.