Take time to choose your trekking company. The cheapest trekking company may not always be the best, and the most expensive may be overcharging for the service.
Prices for the Salkantay Trek are actually quite high. A five day Salkantay trek is about the same price as the classic 4 day Inca Trail trek. Reputable trekking companies will offer decent camping equipment, cooks, a dining tent, horses to carry your equipment and qualified guides that are trained in first aid. Prices normally include transport to the trail head, entrance tickets to Machu Picchu, return train tickets to Cusco, meals and camping equipment.
A fair price in 2010 for the full 5 days Salkantay Trek is US $400 – $500.per person.