Just need a signal good enough for the front of house guys to work with as most on stage sound is only for your own benefit.
That being said, it is an absolute blast playing some good axes through a high end amp but with all the budget priced gear with amp simulation available for less than $500 your money is better spent on finding an axe that plays & feels well foremost and secondly sounds good too however downstream signal processors can also help compensate budget priced guitars to some extent.