Wow, I am surprised at the level of vehemence raised on this thread.
Personally I don't like accessory rails on my personal carry guns. I might make an exception for a specific night stand gun, but generally I don't want them. I would like to see rails available as an option or alternatively, no rails as an option. I don't like that pretty much everything being newly manufactured now has them on without an option to not have them. I understand that not offering the option makes it easier for tooling, but just that same that's my preference.
As for the tactical usefulness of lights, I have made my statement in other threads and don't need to repeat it here. I do think however that there is a lot of self consciousness and rationalization going on else there wouldn't be so much heat in these discussions. I could be and likely am wrong, but that is the impression that it makes. If your logic, reason and experience tells you that a light is right, great, and you may even decide to convince me of their importance, but if we differ, then we differ, and a grand conversation was had. I just don't see a need for such emphasis on making one bunch of guys "right" and the other "wrong".