I believe that's a place that one should definitely visit during our lifetime. I haven't had the chance yet but my cousin was there last year and I saw the photos plus she told me everything in details, even about Cusco.
However, I'm glad to read your blog, you've managed to capture some wonderful photos.
It's a very unique and special place
Cusco's altitude is even higher - great place to visit though, lovely people - one of the hardest airports on earth to land a commercial aircraft - interesting experience though :)