Depending on where you live, refinishing a wheel with minor curb rash will run you $100-$150. Finish quality will be very good to acceptable but its hard to find a wheelsmith who can perfectly match the factory finish with consistency so if you're a stickler for details then buy a new wheel and keep the other as a full size spare option. Beware some wheel guys will use powdercoat when the original finish was regular automotive paint (or vice versa) and high-temp curing of powdercoat can affect the heat treatment so ask the right questions before choosing the shop.
You could also try some of the rim protector/coverup things that go around the outside of the rim. They can help prevent future damage, and cover up quite a bit too. The larger gauge ones are about $100 or so and fit in your tires bead seam. Theres also a stick on version thats a little less wide, but goes on with 3m tape at 500madness
As others have said, you can get it repaired for $100-$150 but there are caveats. The Sport rim might be tough to match as it's not your standard Brilliant Silver like most cars, and if the gouge is deep enough they've have to remove the tire then remount and balance it, typically another $40. As you noted, a few more bucks will get you a new rim, and if you browse the internet you may find a nice condition used one for $150 or so from someone that's upgraded to custom and/or larger wheels.