It's definitely worth $40 if you're willing to hack it. When running games through Retroarch just be sure to turn off the bilinear filter and make sure you're using NTSC ISOs.
I totally agree that these eShop sales are terrible, especially compared to PSN, XBL and Steam. I don't understand why they are so reluctant to discount 20+ year old games. The only digital games that get consistently discounted are the shovelware titles. Beyond that you're lucky if they knock a...
I have the regular version of Luigi's Mansion and it comes with an "instruction booklet" (as it calls itself) but it's just more like a small poster/sheet of paper folded up. It's nothing special. Here's a quick picture
I clicked the "buy" option even though the price was still listed as $30 (with no other options) and it immediately added it to my library without charging me. Pretty bad design but it is downloading now.
Yeah I saw that, clicked on it. It takes me to a generic Xbox Gold page with no mention of Halo 5. Searching through the store manually the game is still $30. I'll try again tomorrow.