Guess I was also missing the point a bit, having the longer production cycle in mind. Apologies for the derail.
I remember when I first came across one of these on ebay years ago- Super Mario RPG PAL and the asking price was $250, I was so confused as I thought it never got released here... Didn't know they were reproductions.. Years later I kept seeing them more and more. I was even tempted to purchase the Secret of Mana 2 and a few others. Then I thought why not try it myself. I don't see anything wrong in selling these, some people don't have the time or even the 'skill' to pull it off. You would pay someone to install a modchip for you, this is no different. as long as you are not charging arm and a leg for it. I find the boxes and manuals a little bit too much.
The only issue is people might get misled thinking that they are the real deal. They should be clearly labeled as reproduction copies. Not labeling them is dishonest at best and scamming at worst.