IMO, no. We also have a lot of lightning with our storms, and most of the houses do not have them. If you are going with a metal roof, then they are a definite no. My husband covered a barn roof and the owner installed them, the barn was struck by lightning and burned down.

I always thought lightning went for the tallest point until scientists stated when lightning is forming, actually objects lift up to meet - why your hair stands on end.

Having had lightning strike about 100 feet from me twice, once hitting the ground instead of the multi-story structure I was in, and once hitting the ground instead of any of the forest of masts on hundreds of nearby sailboats, I can assure you that it does not always strike the highest point. However, it is more likely to strike high points than low points. Very tall structures that are significantly higher than their surroundings, such as radio and TV towers, are struck frequently enough that they are sometimes equipped with strike counters to monitor the number of hits. Being the highest thing around does increase your odds of being hit.

Lighting protection is not well understood by most people, and that includes some who install lightning protection systems (LPS). Sometimes, it can makes things worse. I suggest getting a detailed proposal from your LPS vendor and posting it to this and other web sites for comment before proceeding. A little Googling should find a science or engineering forum with some LPS discussions.