The main Square is very famous and praised in all the tourist guides, but I found it was horrible. The architecture is totally uninteresting and the attractions were either adressed at the tourist or not understandable. the atmosphere was strange but not interesting.
If you must then do so but remember to bargain. My friend wanted to do a camel ride and our "guide" took us to his friend who own such. It started at something like $50 dollars for an hour. My friend was able to haggle down to $15 an hour.
Fun Alternatives: Tell them that you just want to ride the camel for 10-15 minutes to take pictures. Most often than not, they would agree to lower their price.
LE PALMERAIE of Marrakesh
This palm trees wood in the north of Marrakesh used to be a nice oasis to walk around in the evenings and see the sunsets. Now a lot of rich people have built houses all around and the place is like a normal luxury urbanization, with a few palms: paved streets, high walls...
If you want to see a real oasis, you gotta go out of Marrakesh, a bit further!
It is important to remember when you are traveling in any part of Morocco (but especially around the square in Marrakesh) that there are hundreds of people out there who would love to swindle you out of your money. You may meet locals who take you under their wing. Be wary, some of these people are the real deal, but many are only trying to gain your confidence so they can pressure you into that big sale before you leave. It seems that just about anyone you meet has a brother, cousing, and uncle in the rug business. Just because someone has spent the past couple of days showing you their city, don't let them pressure you into buying something you don't want...trust me, they'll try.
It is an interesting country and perhaps some of us just don't understand all of these things. It all seems like a tourist trap to us.
The tour guides are all wired into the scheme and the scheme is in your pocket or your handbag. It is a very elementary equation, you have what they want and they have what you don't need. Sometimes you win and sometimes you lose. Ancient traditions always prevail .