A lot of good points of view here expressed by all. In my experience northern hunters tend to be more interested/involved in the fall season than southern hunters. That seems to hold true here as well. Maybe this is due to access, although plenty of southern states also have fall seasons. I would echo the comments of many others here: if you enjoy spring hunting, and your state or a nearby state offers a fall season, give it a try. It is absolutely as much fun as spring turkey hunting, although the learning curve can be a bit steeper. Like anything else you get out what you put into it. If you don't consider a hunt successful unless a bird is flopping by the end of it, you might struggle to make it to the top of the curve. Don't get me wrong, experienced fall hunters put plenty of birds on the ground, but it takes some time to get the hang of it. Fall is a great change of pace. Seasons are long, hunting pressure is light, and the entire experience is just enjoyable. Place I wouldn't touch with a 10 foot pole in the spring because of all the hunter traffic are all mine for months on end in the fall.
I also agree that fall hunting will absolutely make you a more complete and effective spring turkey hunter. You'll learn to talk with turkeys, instead of call to them. Play on their different emotions and see how effective pecking order tactics can be. It's a useful bag of tricks to have in your back pocket for pressured, henned up, or otherwise quiet birds in the spring. To me, fall turkey hunting is real turkey hunting, while spring hunting is taking advantage of the birds behavior during a special (predictable) season of the year. I don't mean this in a negative manner at all, I just mean turkeys act more "normal" (for a turkey) during the fall season. The spring is when they are different.
Ok, time for an attempt at an analogy, stay with me here
Turkey hunting is like bass fishing. Spring turkey hunting is like fishing bass off their beds in the spring. Both animals change their behaviors in a predictable way (turkeys by gobbling more, and showing interest in hens; bass by bedding in the shallows where they are easily observed) that make them more conspicuous and vulnerable to hunters/fishermen employing certain tactics. I don't mean to imply that hunting turkey in the spring is any easier than the rest of the year, because it isn't. It's simply different. As spring turns to summer both turkeys and bass get back to more "normal" modes of behavior. Bass fishermen know this, and change their tactics accordingly. They know the spring is only the tip of the iceberg when it comes to their quarry of choice, enjoyable yes, but hardly the only time to catch a bass. Most turkey hunters on the other hand, don't really pay much attention to "normal" turkey behavior. If toms aren't gobbling to hen calls the hunt is over for that year, simple as that. When in actuality turkeys are social birds, and in a lot of cases respond even better to calling in the fall, especially as they form large wintering flocks. You just have to talk with them. A bit of a stretch yes, but you see where I'm going with this.
We aren't really talking drastic changes in tactics either. Yes, breaking up flocks and calling them back in can be very effective (try it in the spring even, it works then as well), but it certainly isn't the only way to hunt turkeys in the fall. I prefer to hunt them similar to the way I do in the spring. Run and Gun through the fall woods calling and listening for a response. Fall hunts are just as fun and exciting as the spring. Last December we had a group of a dozen longbeards and super jakes so riled up on the roost they were chain gobbling for 20 minutes before flydown like it was mid April, despite the -20F temps and 8" of fresh snow on the ground.