The DS Lite improved upon its predecessor in almost every way. Brighter, sleeker, and smaller .. but, alas, it perhaps became a bit too small. Due to it's decreased size, the DS Lite was unable to fully house GBA cartridges, creating a veritable tumor on your system.
In days of yore, we would carry around our DS permanently loaded with both our current DS game of choice, as well as a pick-up-and-play GBA game. These days, we seek to retain our beautiful form factor and simply leave the placeholder "cart" in the slot. Do you guys care about the GBA functionality at all, and are you willing to handle the eyesore? Ladies and gentlemen, to your comments!