How come PSO is not being sold

[Lee-yoshi]

You can use PSO on as many Gamecubes as you like, whether you play it online or not. However, once the PSO games Serial Number and Access Key have been registered with SEGA, it cannot be registered again to a different user - although it can be used on another Gamecube.

PSO, Episodes I & II were discontinued ages ago, and ever since about Christmas 2003 its been incredibly hard to find a copy. You wont find a Pre-owned copy of Phantasy Star Online either at places like GAME/Electronics Boutique because they wont trade them in incase they have been played online before - hence not allowing anyone else to play it online. I dont know why it was discontinued from retail sales, it just was, and it was a sad day for PSO fans, meaning no more people could pick it up and play! ;_;