This page compares West Europe cruising regions between the Straits of Gibraltar and the Heel of Italy. Developed coastlines, sophistication, seasonal crowds (and expense!) and a lively café culture summarise the area. And throughout there are excellent fresh food markets and good yacht support.
This contrasts markedly with the undeveloped North Africa coastline, and the lower cost, but less developed economies of Greece and Turkey - with the Adriatic a half way compromise.