Sand vs Bare Ass is no different to the T5 vs MH saga. Theres no winner and never will be. Its all up to personal preference as to what you do.
As I've said, I like the look of substrate/sand, and will always have it with future tanks, especially because I keep fish & inverts which benefit from having a sandbed.
Theres no right or wrong answer to this one. You are going to end up in the same place no matter what road you take, so take the one that you feel comfortable taking, and deal with any problems that arise as they happen. Remember, patience is the key in this hobby