kapper, thanks for your observations on Hotel Titilaka, especially the excursion experiences. Great tips on the Lampa and Tiahuanaco excursions, we will start doing some Internet searches for additional information.
Yes, Adventure Doc is a good web site. We have been fortunate to avoid AMS during prior trips to higher altitudes (we do take DIAMOX SEQUELS) and will certainly do so again, if we travel to Puno at more than 12,500 feet.
Considering the daily rates at Hotel Titlaka (even deeply discounted with the LL package), we certainly wouldn't want to spend one or two days in bed sucking O2 trying to acclimatize.