I sure at some point in the prototyping stage Sega thought
"Gee, I wonder what we could do to push the price of this new system up?"
Then some bright spark may have added
"By Gosh! I'v got it! Let's add some completely unnecessary components that are only there to annoy all our potential customer!"
To which Sega replyed
"Well done, son. You've earned a promotion! Care to be CEO of SoJ?"
Which is why we see Sega in it's current sorry state.
To cut a long story short - who knows? One can only assume it's there for a reason.
(Don't mind the bitter sarcasm, it's not really directed at you - I've been playing Road Avenger...nuff said

)
EDIT: spelling/grammer
(Edited by Curtis at 6:58 am on Nov. 22, 2001)