I've seen the Hero 6 Karma bundle priced at $599 and $699 at various retailers over the holidays (Black Friday, Cyber Monday). The Hero 6 Camera ($399) and Grip ($299) by themselves, would cost more than the entire package. When considering the cost of the drone as part of the package, typically Its been about a $200 dollar add on...but in some cases, it is almost like buying the camera, and the grip, and getting a drone for free!
Yes, total package cost, puts it above the price of a Spark Fly-more combo...but with the Spark you are just getting a drone. If you purchase the Spark Flymore combo and don't have an action camera (assuming you would want one)...you are looking at the cost of perhaps the Hero Camera and Karma Grip purchased separately...or basically the cost of the entire Karma package in addition to the Spark. The combination of a waterproof action camera, gimbal, and drone, is what puts this package at a very attractive price point.
I've been very happy with the Karma, and as I have increased experience in my hobby, I'm certainly considering more expensive equipment. Without the Karma...I'm not sure my wife would have ever signed off on a drone...in fact...even today...it is a hard sell... I'm considering a Mavic Air for my next drone purchase due to portability. The Mavic 2 Pro is certainly appealing, but the cost and slight increase in size (mostly cost) give me pause. I'm also looking at adding the the Insta 360 One X to my camera kit, because I have VR equipment, and I'm interested in the 360 VR aspects of that camera and new ways of exploring videography. I also like the possibility of reducing the size and weight of the Hero Camera and Grip, while maintaining very stable video. There is also the option of moving time lapse shots without all the extra equipment I need to pack along with my Hero Camera. I'm concerned about reduced image quality...but wondering if the pros might overcome the cons.
Regardless...my Hero 5 and Karma Grip are going to stay in my camera kit. The Hero 5 will be especially useful for scuba diving, downhill skiing or snowboarding, mountain biking, and other activities where anything less than an action camera just wouldn't do.