IMO the Nexstar features are somewhat worth the money. I have been wondering if they took off the AFS would it be cheaper, because you dont need it. For me one of the best features the Nexstar has is the bolt on wing. There are many guys at my club that have trainers with rubber
bands and they all agree that they are a pain in the butt. I know the rubber bands are supposed to be more forgiving when you crash but for me it doesnt outweigh the ease of a bolt on wing. The other features are great and the simulator program is worth its weight in gold.

There are other trainers with bolt on wings that are cheaper than the Nexstar, its up to you. I havent had any experience with the Tower Trainer but im sure its a good as any other trainer.
As long as it teaches you to fly it doesnt matter what you get. You may have a little less anxiety when first starting out if you buy the cheaper model.(just a thought).

Have fun whatever you choose and good luck.
Happy Landings,

Sean