Yes, I think a refurbished model should have been looked over and warn/damaged parts replaced. A unit that was pulled from somewhere has not had anyone look over it. It might be on its last legs for all we know. Hopefully a refurbished model will be more dependable and last longer. That isn't gauaranteed to be the case, but for an extra $16, I think the refurbished model is a better choice/cheap insurance.
I actually think I will pick one up myself. They have had the cheaper, used model for quite some time and I've thought about getting it before. Now that they have the refurbished model for just slightly more, I think that will be enough for me to actually pull the trigger.
I am going to be building a new computer to act as a CQC server by the end of the year. So this will give me a real use for touchscreens (to act as an interface with CQC).