You gotta get comfortable with the viewfinder. Set the diopter for your eyesight and learn to love it. Ambitions to use Live View all the time on a DSLR will end in tears. The decision between the 5500 and the 7100 should be about: Weight vs durability, Complexity vs control, Dody size, The folding screen, and The older lenses if you have them. The 7100 "banding" is a complete red herring, only impacting internet forum debates The 7100 buffer, on the other hand, is a real limitation if your style involves blasting away with the shutter down while shooting RAW. Of course, if you're willing to slow the process down to Live View speeds, the buffer is the least of your worries! They are both great cameras with crazy IQ - I hope you find a way to make one of them work for you!