Haha lucky people! You with your full PA support
1 out of 3 of my shows will have a PA for something other than Vocals, and 9 out of 10 this will only include the bass drum and possibly a multidirectional over the drum set. When there has been a PA running that will include the guitar and bass as well, the guitarist and I usually opt to stay out of it, since most of the soundmen we encounter only have money to buy the lower end PA equipment, which our rigs can easily over power.
I must say, turning up to a bit under halfway and feeling your chest resonate from dozens of feet away sure is an experience!
IF on the off chance we get some decent sound guy, AND we go in the system, we will still carry our gig rigs. A little moniter is not the same experience as a full rig. Some may argue that you only need to hear yourself, but my band has so much more fun when we have power with us on stage. Again, this is our thing and may not be for everyone.
I must say, turning up to a bit under halfway and feeling your chest resonate from dozens of feet away sure is an experience!
IF on the off chance we get some decent sound guy, AND we go in the system, we will still carry our gig rigs. A little moniter is not the same experience as a full rig. Some may argue that you only need to hear yourself, but my band has so much more fun when we have power with us on stage. Again, this is our thing and may not be for everyone.

You should be more concerned about how your band sounds as a whole. If this means turning down then so be it.