Our church just recently went through the same experience with the drums. Acoustic or electronic drums ?

From technical standpoint, it is an easier decision.
1) If you got large areas and lots of people (>100) then the acoustic is acceptable. Although I'm not saying that electric is not acceptable. I personally prefer electric drums over acoustic because of versality and control. You can change the sounds for various styles and not have to worry about hitting them too hard for certain fast styles.

2) If you have small space or less people then electronic drums is the only choice that makes sense. You can easily control the volume. One can argue that the he/she can control how loud they hit the acoustic drums. But when they got excited, the volume will be unbearable and drown out everything else. It is a sound system nightmare. The electronic drums excel in the cymbal dept. because it will produce a nice crash even at lower volumes. With the real cymbals, that is almost impossible. The only acceptable crash sound can only be produced by hitting the cymbals at a certain power level.

However, there are human factors to consider. Sometimes, you got players who will not play if you ask them to play electronic drums.
1) Player feel: acoustic is clearly superior. Almost all the players prefer acoustic over electronic.
2) Player morale: they may not enjoy playing electronic drums especially one with small pads. The V-drums are nice though.

At our church, we started out with electric drum since we only had 20-30 people at the most at our service. Then someone donated an acoustic drum. Our drummer was so excited and immediately switch. It turned out that the drums sound overpowered the keyboard player and the singers. It really distracted us. But he wouldn't switch back to electric after enjoying the acoustic feel and we have a problem. After some time of enduring the acoustic drum, somehow the situation changed and forced the drummer to use the electronic drums. What a relief that was for many of us !! Now everything is nice and balance.