The Game Boy is practically synonymous with nostalgia. Long car rides with classics like Pokémon Red/Blue and Tetris were a staple of childhood in the 1990s. Many fans look back on the Game Boy with fondness, recalling the iconic soundtracks and engaging game designs of Nintendo's handheld console. Rare Game Boy games have increased tremendously in value, and the rarest CIB (Complete In Box; which includes a working game cartridge, the game manual, and the original box) copies have moved far beyond the $1,000 mark.
Source：https://www.cbr.com/rare-game-boy-games-cost/
