only a couple. I have an 8 string that gets rid of the need for a lot of guitars in different tunings i
4... Drop C, Drop Bb, standard E and 7 strings! \m/
i only play E standard, but i need more than 5 guitars!
I can never have enough!
If I had a show that played everything I could play I could probably escape with 4 alone. Given any show I can usually stick to 2.