Well, for sure I am first not looking for the cheapest vehicle overall here. If so, I could probably find some old Toyota RAV4 or something on the used market for cheap that would probably last me a long time.
I am looking for a higher end luxury car, and I know that it will come with an added cost over the other less expensive options. However, it also comes with the added comfort and luxury I am after. Now, from what I have gathered for this particular car, it does seem to be fairly reliable.
As you pointed out, the more cars I could get info on the better. I think an average of 25.07 is probably not all that horrible considering the variables of people towing, driving in winter, and I know many drive many more miles in town than I would ever do. It does seem unless the people I have asked on the Bimmer forums are lying that for more highway drivning like I plan on doing that mid to sometimes upper 30's on the highway are not uncommon. Compared to the other options I have looked at, this is a bit better. For how much I drive, fuel price will likely be one of the larger expenses.
I will add that current diesel prices in my area are almost a full dollar more than gas. This will run the price per mile up a bit for sure and if it's still continuing on this trend when I am ready to buy, I may strongly reconsider the CX-9 and how important the towing actually is to me.