Yes, locals being priced out by second homes market is pretty common everywhere (think Cornwall!)
Also, at least Tuscany has attracted rich tourism, from the UK, Germany etc... Think of how some bits of coast in Spain have been devastated by mass tourism.
But yes, Italy has a problem of low salaries, depressingly so.
On the other hand, despite the crisis, the impotence of our politicians, the malaise, the rudeness etc, there are still sparks of enthusiasm and need to be together, which is not to be underestimated.
And today we have perfect weather, even here in Milan 