It is worth paying! Now, I am proud of paying a thousand boxes for it. I thought for a few hours flight that much! When we landed at Kalapatthar, oh wow! I can still feel my excitement of seeing such a beautiful view and so close. I recommend all don’t think about the cost, just fly there! It is amazing! If you have one extra day in Kathmandu book the helicopter flight tour to the Everest base camp without thinking a lot.