It all has to do with your personal taste and balance. In my church, I use the PA1x, a dgx-500 as a controller then have a guitar player who uses a half-stack Marshall. Yes, we ROCK THE HOUSE because that's what we like and the whole church is behind us and likes it too, mostly older people in fact. We are a new church, around 10 years old and are able to do what we feel God is telling us to do. Our main pastor is the one with the vision and she simply feels a direction to go and we go. There are plenty of other churches out there for anyone who doesn't like our style, direction, ministry, etc. We do have an elder board and she consults us, we decide things and work tem out together, when the few things come up that are controversial.

That aside, I have been using just a piano or arranger keyboard for years now and it works great for our style, which is heavy rock, R & B, gospel style.

Whatever helps you worship God should be what works.

BTW, we only have about 30 minutes of music and about 45 minutes of preaching.

Jeff