It is unreal how many tourists are there, though. I was shocked when I went there and basically couldn’t even see the fountain. We left immediately because we didn’t want to deal with all that. Rome has been my least favourite city to visit, purely because of all the tourists. Even going to Paris, which has CRAZY numbers of tourists, didn’t seem as bad; maybe because it was just designed to handle it.
I don’t think the 2 euro fee will stem the number of tourists, but it will help pay for all the upkeep the city has to do for everything to not go to shit when a million people walk through a small area every day.
We should make exact copies of the most interesting tourist objects and spread them over Europe. No like the average Tomasch Macaretti cares about how exactly old this particular fountain or monument.

