Is not so much matter of cost - what we have here are different lens designs due to different FL ranges. It is not like the designers of the 24-105 did not get paid enough to reduce the geometric distortions even more.
I remember reading an interview by one of the Samsung representatives - his point was that the ability to correct geometry with software allows to design sharper lenses, even after software corrections, since optical distortion corrections come at a greater IQ cost.
This! I will say that the 24-105 has been my go-to for landscapes due to limited budget (though I'm interested in the 14mm Samyang 2.8, which is known for really ugly mustached-distortion... also fixable!)-- I've shot a lot on the Washington coast and, as others have said on this, the Lightroom correction is one button. If you're still kicking yourself for using Aperture instead, you can download a 30-day trial of Lightroom from the Adobe site. Definitely worth tinkering with.
I know you mentioned you hate the technical editing piece of photography but these days that's where a lot seems to really come together. If you get a great shot, simple non-destructive enhancements really let it shine. I dove into photography again after a 10 year hiatus because it's the only hobby where I felt art was truly co-dependent on science in every way. Embrace the tech if you can, or just get really fantastic, perfect light on all your outings. Cheers!