Getting PS2 for only 3 games

I want to play all the other MGS games before getting MGS4 for my PS3. I have already played MGS1 on my PC and I loved it. So is it worth spending 150$ for it? And what are the differences in Substance and Subsistene and the normal versions. Which version do you get in Metal Gear Solid: The Essential Collection?

A ps2 can be bought for just $100 you know... I think the MGS Essentials Collection is the way to go.

Plus I think somewhere along the line you'll be wanting your ps2 to play more games since you'll start liking different games and the ps2 has a huge library.

Metal Gear Solid 2 Substance is on PC also, so the only game you'd probably be getting a PS2 for is MGS3, unless you want to wait for the 3DS to come out and get it with the MGS3 remake that's planned for it.

Then do it a PS2 is only $99.99 plus if you can find the Metal Gear Solid essentials PS2 triple pack. Metal gear solid 1,2,3 and a extra disc (detailing the Metal Gear Solid story/Solid Snake history.

Do it it is worth it... Or if you can find a BC Playstation 3 (20,60,80*giger) only first version of the 80 is BC. Then just get Metal Gear 1,2,3,4