You're just not playing the right stuff, Robo. Grab any of the games I listed above and you'll change your tune. Fire Emblem, Mario & Luigi, both Metroid games, LOZ: The Minish Cap and Castlevania: Aria of Sorrow are more than enough incentive to give portable gaming more of your attention.

As for the DS, Yoshi Touch n' Go is a good choice, but there are better games. WarioWare Touched, Kirby Canvas Curse and Meteos are the three best, and they are perfect examples of how the touchscreen can be used creatively by developers.