There are no advantages or disadvantages to having more that 110 and 119, it solely depends what programming you are receiving. Before HD began to make its push, all customers receiving mainstream programming were getting it from 110 and 119. Now, most HD programming either comes off the 61.5 or 129 satellite depending on what market you are in. If you are on the east coast you will probably get your HD from 61.5 the central and western US, 129. The newest locations, 72.7 and 77 were launched to provide a "one dish solution" for new customers in the east using the new 1000.4 dish (61.5, 72.7 and 77) while the customers receiving HD from 129 use the 1000.2 dish to receive 110, 119 and 129. The newest satellites (72.7 and 77) are MPEG 4 which can ONLY be received with the HD ViP series of receivers. Dish Network will be installing new customers on the eastern arc (61.5, 72.7 and 77) with the 1000.4 and ViP receivers regardless of whether or not they are subscribing to HD programming. This also make it convienent when those customers get and HD set, they will only have to connect a cable from the receiver to the TV without a service call. Another satellite that is common is the 118.7, this is used for all international programming and can only be received by using the PLUS dish. The final location in service is the 148 which did mirror 61.5, but does not have HD programming on it and has some international programming some of which is being migrated to 118.7. Lastly there are two locations that are no longer in service which are the 105 and 121 the used to be for local channel using the cumbersome SUPERDISH. If you have any more questions, don't hesitate.