For real this time

@JSO18 mainly the dogfighting because I am getting it on Pc

I would get it because while SR2 has a much better building system and a much better map (multiple entire planets) there is still a lot in SP that is not in SR2, like building planes with propellers, stock weapons, AI flying or driving around to fight, and a lot more.

IMO, sr2 is all you need because it's easier to build and has a much bigger area to explore. However, I would still buy sp because the sp website has pretty much any plane you could ever ask for, and there's combat.

Yeah sure, if you have a well running pc then it's worth it