Stupid PS2

I have like I said a broken PS2 that always gets disc read error. I'm thinking that it's an old version of the ps2 because first of all it looks really old. Does that mean that since the newer PS2's are actually newer versons of it that they have a better loading time , a better disc reader or a lens. Because my PS2 I think has no cure. I opened it up to fix it and I followed the instructions of a website. I really thought I was fixing it and cleaning but I guess I didn't. This PS2 that I'm talking about was actually another man's trash which I thought was my treasure but really was everybody's trash. I was given this by a kid who said that it didn't work anymore. I guess he was write but I don't want to risk paying for it to get fixed if it might not even work ever again. I have heard that that stupid disc read error happens to every single Ps2 eventually. I think it might be true which then leads poeple into buying another PS2 System which really benefits SONY. I don't know what to do with it but I woder if GAMESTOP will buy it off of me even if it doesn't work. I heard that they give you only $50 if you sell them your PS2 (I think a working one). OR I could always do it the deceptive way of a thief. My cousin bought a new PS2 because his old one didn't work anymore, so then he opens the box and switches the old one with the new one keeps the new one and returns it to the store with his money back. I don't think I will do this because I really hate stealing(in real life i mean not video games)

I will continue this some other time when I have time and with that I conclude....