OK, this isn't Atari related, so sue me (please don't do that). I was recently at RetroUSB's site and noticed that quite a few NES homebrews had been added since my last visit several years ago, and these newer titles are being sold at a discounted price. $10 off each on many of their titles. The newer releases seem to use donor carts, unlike their older titles that use new carts. The only explanation that I can come up with is perhaps the releases using donor cartridges were not actually produced by them. I don't really know though. Most of the games where I indicated ordered have been discounted (but not all).

The 8 Bit XMAS carts come/came in a clear shell, with blinking Christmas lights, a personalized message, holiday music, and in some cases a mini-game.

Games In Stock

• 2-in-1 Geminim/Siamond   own
• 8 Bit XMAS 2017
• Assimilate   ordered
• Battle Kid: Fortress of Peril (ver. 1.100)   own
• Battle Kid 2: Mountain of Torment   own
• Beat Em' & Eat 'Em   ordered
• Chuckout 2   own
• Homebrew World Championship 2012   own
• Mystic Pillars   own
• Power Coloring
• Quadralords   ordered
• Solaris   ordered
• Study Hall   own
• Super NESnake 2   own
• Twelve Seconds

Games Discontinued

• 8 Bit XMAS 2008
• 8 Bit XMAS 2009
• 8 Bit XMAS 2010
• 8 Bit XMAS 2011
• 8 Bit XMAS 2012
• 8 Bit XMAS 2013
• 8 Bit XMAS 2014
• 8 Bit XMAS 2015
• 8 Bit XMAS 2016
• 8 Bit XMAS 2018
• Airball   own
• Battle Kid: Fortress of Peril (ver. 1.000)   own
• Chunckout 2 Japanese
• Larry and the Long Look For a Luscious Lover   own
• Mad Wizard   own
• Mike Tyson's Intergalctic Power Punch   own
• Nomolos: Storming the Catsle   own
• Rise of Amondus
• Sneak n Peek
• Sudoku 2007
• Tic-Tac XO
• Ultimate Frogger Champion   own
• Vs. Castlevania
• Vs. Duck Hunt
• Vs. Excitebike
• Vs. Super Mario Bros.

https://www.retrousb.com/