Ok I just started up road cycling for the first time after some time in Mountain/Off-Road bikes. My only road bike is a I don't know what year Schwinn Worldsport (which I figure is a bargin bike back in the day) my friend gave to me. I have pics if anyone can figure out for me.

My question is I did a search and found out what to buy with $500-600 dollars (The money I have right now) or stink with my Worldsport for a year and pick up a $1500-3000 then?

Thanks, and welcome from a military man.