So why pay the extra money for the AK?
Because I like it and I enjoy shooting it? I pay lots more money for other rifles, as well. I'm contemplating a 7.62 AR, also.
I can agree on most of your points, but I still don't like the layout and ergonomics of the SKS. I'm not saying anything is wrong with it. There are just other rifles I enjoy shooting more. Since I don't enjoy shooting it, I'll never practice enough with it to trust it for anything. My AR or my 870 both serve that role reliably. My carry handgun is always on my side, by my side or at bedside while I sleep. I'm not a bedside rifle guy, so I really don't ever envision needing to go to the safe for my rifle. If I do, choices of rifle and caliber are the least of my worries. Can you use the sks for self defense like that? Absolutely. But there are choices that are faster handling, better handling, more optic friendly while remaining equally reliable.
They're also powerful, light, and have almost no recoil.
Ok, wait...light? Compared to what? An AR with a simple light and optic is light, a lever gun even with a scout scope is light...an sks doesn't exactly strike me as being light. It isn't a heavy weight, either. But for a go to grab and go gun to take out for the day, I'll take a lever action any day of the week. My last lever weighed less than 7 lbs loaded. My sks weighs over 8 1/2lbs unloaded.
I also don't care about zombies, end of the world or survival thoughts. My kids have allergies, asthma or a few other things between them all combined, which means I am dependent on my local pharmacy. In other words, whichever rifle survives the end times better means zilch to me. They only need to be reliable for a day or two in the woods or to go shooting on my property in varying weather conditions. I haven't experienced many rifles that won't handle this.
But all of this is OT....yes, I still say $150 is a good deal and even I would buy it. I don't hate the sks, but I don't love it, either.