In a way, I am sort of the same. But for a slightly different reason. You know from the HA10 reporting thread how it is basically a long shot for most of the player base to get anything exciting (e.g. non vanillas), but in the beta environment, there is not that time constraint, so you can do retrain after retrain without having to wait like the live environment, so a tester, said that it took him 45 to 46 retrains attempts to get something non-S1.
To me finding out how things work, playing with the latest heroes is all good and cool, but it kind of takes away the anticipation, the excitement, the mystery or allure of waiting, in the live environment. Getting say an exclusive 5* hero in the beta environment and play with him/her may be exciting, but the reality of the live environment is where you are in the world.
So yeah, don’t really want to be a beta tester either because it takes away the feel good feeling when something good does happen when you least expected it.