i have a copy of Delphi 5 somewhere, and i was wondering if its a good language or not, what are some of its strengths and weaknesses?

i don't have alot of time on my hands to teach myself programming, so i only want to learn the ones that will really help me. I am currently learning perl and c++. Does delphi do anything these don't, or should i just sell my copy and get some extra money.