But you wouldn't spend less money for the same thing, as S1 and S2 are not the same. S2 has a lot more cars & tracks. Also, there's only very few S1 servers left that are populated. Now that the CTRA servers are back there's CTRA Race 1, you can join that one with S1, but you'll only be able to drive the normal road cars and not the faster ones. I myself bought S1 first and had a lot of fun on CTRA, but when they went down for a few weeks when patch X came out there weren't any S1 servers anymore so I was forced to upgrade to S2. Haven't regretted it, though.