There are probably a lot of things you shouldn't buy mail order. I'll leave that to your imagination. Today, I got a mail order guitar. And it has brought back memories. My first guitar - a Kay electric - under the tree. Very exiting Christmas. I was about 12, I think. Then I somehow got a little F hole acoustic soon after. Played that past the neck bowing till my fingers hurt to play it.
Then, my biggest purchase. I was in the Air Force, stationed in Greenland and had a Jumbo Yamaha shipped to me there. LOVED that guitar. Carried it to Spain and back - all across the US and back. That mail order guitar suited me fine and served me well. Sold it thinking I needed something better. And the next guitar was a nice one - is a nice one - my nephew has it now. And I've been playing it a lot lately. Oddly, it just didn't feel the same to me any more.
So, I got a bug to mail order a guitar - like I did way back when. Now, back then, I knew the exact guitar I wanted. This time, I just picked what I felt I could afford right now. It came today and I've been playing it. It's not the Yamaha. It's not an Oscar Schmit or a Guild or a Martin. But playing it just now - it suits me fine.
I knew it when I found myself playing a little bluesy rift I've done off and on for years but have never found words to give it. I didn't find words yet, but suddenly little parts of the rift I long forgot to add came out. I was playing what I felt and it felt ok. The little $99 special guitar can stay and I'll keep it in the hard case that looks like it should be holding a $600 guitar.