Sell the Dsi for ipod touch?

i have a Dsi, 4gb sd card and modern warfare mobilized along with scribblenauts. i REALLY want the itouch because i wanted it, didnt and now i do because me and my dad are the only people in my family (out of five) that dont have them. my bro just got his and he LOVES it. he spent at least 3 hours in his room downloading games and playin them. to the point, should i sell my dsi and stuff and get an ipod touch?