I am planning to go to Rajasthan as I want to get a feel of the desert sand - the real feeling. I should be able to go to the desert upto such a point (without getting lost of course) that whether I look straight ahead or behind, left or right. i just see sand! I have seen options like 'Sam Dhani', 'Osian' and 'Khuri'. I am planning to come from Delhi. Please suggest what to do. Plus this should be an economy trip!