As with most things in Masonry, it will all make better sense after you have done it.
At the September Reunion you will see the 4th, 6th, 14th, 18th, 21st, 22nd, 25th, 29th, 30th and 32nd. You will walk out on the second day a 32nd Degree Scottish Rite Mason. I think it is fair to say the majority of SR Masons probably only go to one reunion. Clearly, those who are involved will work in the degrees or at the Reunions in a supportive role, so most of those will see more degrees.
At the June Reunion, I think we only saw the terminal degrees that Jacob listed above. I am going to make an effort to see all of the degrees before I die. So, I am going to try to go to reunions that include degrees that I have not seen. Based on the disscussion in our classroom time, some of the degrees are a bit rare. If the creek don't rise, I am going to be at the September Reunion in Houston to see the additional degrees that will be conferred at that reunion.
When you look at the schedule that is posted on the Houston SR website you will see that some of the degrees will be communicated. Those are the ones that will be taught in a class. I very much enjoyed the class room time. Pete Normand (with the help of a few others) led the classroom time and he is very enjoyable to listen to, not to mention very knowledgeable.
Like Jacob mentioned, the Master Craftsman program, is a self study program that goes through the degrees. I ordered it right after the June Reunion and it has been very enlightening so far (I have only done the first lesson).