This place has the largest selection of whiskey that I've found in Columbus. If there is a harder to find bourbon or scotch you're looking for they will likely have it.
It seems that they don't put limits on purchases though. I've asked for hard to find bourbon a few times and the clerk said that someone came in and bought it all. It might be helpful to limit these items to 1 or 2 bottles per customer.
The craft beer selection is good with a lot of variety, but it is very disorganized which could be a challenge to customers who don't know what they want.