It's all about recreating what is heard on the CD. It's been like that for years. For some of these artists today, if you can't play keyboard bass, you don't get the gig. Usher's and his MD Valdez Brantley have opted for keyboard bass entirely, after having Alex Evans playing or him on his first live DVD in 2000. I really didn't understand that. I always appreciate hearing a real bass guitar, but some of thse cats can really put it down on keyboard bass. I feel it has it's place, but aint nothing like hearing some good ol' fashioned runs on the real deal.