I am considering getting an iPad mostly for recording guitar. My question, for those who multitrack on their iPads, What should I place more importance on... The more powerful iPad Air (64gb) or the storage space of the regular iPad (128gb) ? (Air/256gb and the Pros are out of my price range). Will I just keep filling up the storage on a 64GB ? Also, I read in another thread here that iPads are only good for a couple tracks worth of multitracking.. is this true? I know a few of the iPad apps advertise many more tracks available than that. I'm just a hobbyist that hasn't recorded since using Cakewalk a couple decades ago, so I don't want to spend much in case I lose interest. Thank you.