I have a couple of combo-edge knives. Happily, neither of them is a Buck.
I've really tried to warm to serrated edges. I find that for most of my uses, they get in the way. Cutting fruit, veggies, salami, cheese, especially when I need to use my thumb against the work up close to the ricasso.
Over the years, after a number of attempts to acclimate myself to the combo edge, I finally developed what amounts to a religious aversion to them.
On the other hand, I do have a couple of knives with two or three blades, one of which is serrated along the full length of the blade. Those make great heavy-use blades for breaking down boxes or other edge-unfriendly cutting tasks. When the whole blade is unapologetically serrated, and there's a companion blade that's entirely plain edge, I'm a happy camper.
The combo edge, however, just leaves me cold.
Which is too bad, really, because I would
really like to pick up a RedPoint or FlashPoint. I like everything else about them.
I'll just have to wait for the "mature audiences" edition of that series. -

- Heck, maybe they could release a limited production run and call it the "
old fogey's classic stick shift edition."
I'd buy one in a heartbeat.