I don't think anyone offers a trial out of the store. if you go to an apple store, you pretty much can play with it all you want, without bringing it out of the store. If you show a lot of interest and trustworthiness, you may be ble to get a manager to unlock one of them so you can pick it up, and walk around in the store with the laptop. No retail store I know of will let someone take a very expensive piece of hardware out of a store for a "trial" run.