Because if the big dog switches go south (low volt comp boards)... I think we are up shits creek as far as finding a replacement.
That is the main reason I'm going old school. I think BD had a great idea with the low voltage thing but let's face it, computers are not reliable (I know I have a software business) and put one in a hot vibrating bike and you are asking for trouble. The switches are computer boards and if they get wet they will short out.
In collecting my parts I decided to go with a Badlands turn signal module to keep it clean. On the other chopper site I'm on they said they work well but only last 2 years or so. At $86 each I'm not worried and there are many different turn signal boxes out there so replacement isn't a problem. (I also never had turn signals before so it's not a big deal)
When I was being flamed I asked the question "give me a sight where I can buy a complete set of switches" and I'll shut up. No one has because there isn't one. Even if you buy a WP or RIP system what happens down the road when the switches go bad?