Ive been through all this before, comparing the various models and balancing this and that.
and the prices vary a lot too, although I imagine they are less expensive in Italy. Here, you are easily looking at 50-90 dollars canadian per tire, so it very possible to spend 200 dollars to find out how you like a tire or not.....
Supemes and Mondials are about 35 euro $50 Cdn, so does not seem that much of a difference, but you're right; one of the worst things is buying a part, not liking it, but not wanting to spend more money to replace it. It's like a saddle sore every time I ride.
But as a side note for Cdn prices. I am looking for an outdoor watch and like the Casio PRG 270.
Amazon Italy- 200 Euro
Amazon US- $140 US
Amazon Ca-$98!! Cdn
Figure that out