That may account for why I have seen many posts on various boards about people getting upgraded there. We stayed only one night there, and since it was a birthday trip for my mom, I booked a savannah room. We had a great view, but I also experienced some problems with staff there - room in disrepair/not clean, rudeness in the counter service restaurant by more than one CM, etc. We will probably not stay there again.
Now, we travel a lot - at least 10 weeks a year - and we usually get upgraded. At WDW we have been upgraded to the honeymoon suite at WL from a standard (one night stay), from standard to king or waterview at moderates and deluxes, from standard to a suite at CSR. There are times we are not, and it is no big deal. However, if a room is really not acceptable to you (noise, cleanliness, etc) you should call the front desk and asked to be moved.
I worked a hotel front desk when I was a senior in high school, and if an upgrade was available, I would give it to people, as I wanted our customers to have a great experience. And I must concur with what others have said about upgrades making good business sense, as I had that conversation with the Director of Rooms at a Four Seasons property - they almost always upgrade people so they will get "spoiled" and want to pay for that room next time.
You need to make the decision of what you will be happy with, and you may or may not get more.
Have a great trip!!!