This is a great concept in vacationing, whether it is in the states or abroad. You can plan where you want to go, what you want to see and have it designed specifically for you and your interests. You could even get a small group of friends together and share the experience and expense of a personal tour guide and it would be so worth it.
You go on a holiday in a country you are not familiar. You buy a day tour or half-day tour because you thought you could visit many places of attraction with the limited time you have. You happily join the tour program along with many other strangers in the bus. Your tour is spoiled by the bus who shorten a stop at a place of attraction to make up for the lost time because a tourist overspent the allocated time at the previous stop. All is covered in a hurry. More often than not, the visit to the places of attraction were not interesting to you but it is all part of the tour program. The tour starts at a certain time and you adjust your schedule to accommodate it. Isn't a holiday suppose to be care-free, time to relax, hassle-free and stress-free. If so, why waste money to buy a day tour package and regret later.
As per your interest and time available, you can prefer to choose the destination. But do keep your budgetary allocation in mind, as it is very much essential. The main aim is to provide you the best possible destinations, so that you do not miss out anything. Every aspect of the tour program is taken care before hand. In fact, you are not at all required to worry about reserving hotel, booking air tickets, hiring cabs. This way, you get relief from a lot of hassles and worry free. Moreover, you get to save a lot of money.