Where can I buy used older video games(NES, SNES)?
You could always try non-high street games shops. We have one in the UK called Chips, which sells old stuff like NES and SNES. An alternative is buying a Wii, and then buying yourself some points and going online to Virtual Console. NES games are about 500 points, SNES about 800 and N64 around 1000. I took me ages to find a SNES with a Mario game called ‘Mario Allstars’ and it was the best buy ever (only £30!). All the games that are or were popular on the older consoles are on the Virtual Console. And you use your Gamecube or Wiimote to play them as far as I know. Games like Ocarina of Time, Super Mario World and Super Metroid are all on there.