Hey, you guys are running a business and I'm running a commentary :-) This stuff is hard enough that what-ifs and naysayers are going to crop up. One of these days I should just put my money where my mouth is. I think the scaling issue is definitely a huge problem and even Cygnus said they found it extremely difficult. I'm not sure it's possible to get the ROI you need if you accept VC, so given your current position, it's not really fair for me to criticise.