I have some time off this summer (few months) and would like to take a long cycling tour. Or perhaps a few shorter tours. I'm seeking some advice on destinations.

I would like to take a supported trip so I don't have to purchase adn carry a ton of equipment. Indoors would be preferable but not necessary. Pavement is a must.

I have road bike and have managed 150-200 km days at a pretty good clip. I don't mind several days of long distance cycling. Lord knows I stored enough "energy" for it this past winter

Where are some of the best fully supported tours based on safety, scenary, and costs?

Are fully supported tours worth the additional cash or should I simply plan the tour myself and reserve accommodations?