Forum:Help with the sims 1

Ok, so i am going to get the sims complete collection and i am not sure about it. I get my things from amazon and the new ones are around $150. I do not really want to spend that money so i went to the used and they were around $35. To me, that is a huge difference and i am nervous that the used ones wont work right. I heard that it might not work because of some code, but i went here to find help.