Pros and Cons of Lightmapping

What are the pros and cons of lightmapping? In my game I have tons of levels, which would require lots of space for the lightmapped textures. But, I also read lightmapping should make my game run 2 - 3x faster. So… should I lightmap or not?

Thanks.

You just need to think about what the low-end hardware of your market is. If you find the framerate unsatisfactory at that level, you should consider light mapping OR forgetting about that chunk of your market. Again, it’s not a question I can give a solid Yes or No to, it’s about what and who you want to distribute to.