We can actually relate quite a lot with your comment since we've also been to Marrakesh and liked it but only to a certain extent. Sure, the food was a delight and the architecture was beautiful, but the whole vibe of the city wasn't exactly to our liking, and especially because of all the scams you've mentioned and attitudes we've encountered. That's why we're glad we've explored Morocco further since Rabat was a really pleasant surprise: the architecture was great as well and the sites less visited, and the people there were much more relaxed. We also visited Fes, which is another Imperial city just like Marrakesh with an incredible medina and great surroundings, and once again the locals were much friendlier there. If you can, you should give both these cities a try to get another glimpse into Morocco! :)