Which DS game has given you the most value for your money and time?

[Grey Acumen]

I've actually found Elite Beat Agents to be tremendously useful for when I need to decompress. The interactive music stuff always gets me to lose myself in it.

I found the minigames in Mario 64 great for passing time between work assignments, though I think I've since lost the cartridge.

Brain Age has been fun simply for the Ego Boost, since I never get anything worse than 23 for my score unless I'm taking it cold after about 4 weeks aside.

I'd say Elite Beat Agents is tops right now, but I haven't really had the funds to pursue purchases recently. I'm very limited on games for DS and Wii, but that's cause I'm saving up for a vacation to the Philippines, so after I get back, I may jump back into gaming.