I recently bought an external drive for my MacBook Air and ran into some issues not with the new drive but a drive I purchased 8 months ago. The vendor was not the cheapest but with experience has proven to be the most value. Why? I was able to call for an RMA, get an advance replacement for the older drive sent to me, and send me software that I didn’t even buy. I had made an equivalent purchase to a bundle that included the software. They agreed to mail it to me at no cost. This kind of treatment is well worth the couple of bucks I pay more per item. That “cost” provides me value far in excess of what I paid.