Should I trade my ps3 slim for a ps3 60gb?

I have owned the older model and currently own the Slim Version The older model as long as you take care of it you will be fine both systems can have problems if the right care isn't given but it's up to you sadly i can't tell you how long your ps3 will last but the older model that i had was with the backwards compatibility and when the new slim ps3 came out i traded it in for it and was working 100%