Found @ night when attending CES. The Convention Hotel is a popular and easy cache. We were disappointed to find only three (3) TB's where the inventory says there should be 23 TB's. We took three TB's and left 11 (eleven) TB's. The TB's we dropped were retrieved during our drive into North East Canada in our Mini Cooper Convertible. We drove from Colorado to Newfoundland and Labrador and returned to Colorado. That was over 12,000 miles of geo-caching. We were the first to see the Sun Rise in the northeastern most point in North America (cape spear, Newfoundland) for one example of our adventure. We picked up two geocache logs on that point. We worked very hard to find geocaches in the most unusual areas including the beginning of the Appalachian Trail--- which is also in Newfoundland). The travel bugs we picked up along the way are unique because some of them were located in Newfoundland in isolated areas. We are trying very hard to keep the TB's moving and take them to different areas that they have not been to yet. We are a little concerned that the Convention Center Hotel Cache has been muggled because of the missing TB's at this hotel. We sincerely hope that the 12 TB's we left at this TB hotel will be discovered by ethical cachers and properly logged and properly dropped off. So far our three found caches in Las Vegas have not been good ones and have made us a little skeptical about the ethics of some geocachers. Although this is a game, why do some people find it necessary to steal? Safe travels, TravelWithUs.