honestly, i dont see the harm. If they offer it, it's because some people had ask for it. it remind me of one of my client that asked for a ram upgrade on an imac, and he wanted a tech to come over to install it. we told him that he could do it himself in 2 minutes, he just have to remove two very obviouslly placed screw and just push the memory inside. everybody can do it. his response was : i dont care the cost, i just dont want to do it, the maid will open the door for the tech.
some people just dont care what they pay for...