I guess I’m the crazy one here. Have a 15inch 2016 touchbar, with no Apple care, and have never purchased it on any of my Apple devices...... As to OP’s question, it really depends on where you’re coming from. I had a 2008 unibody 15, then a 2012 retina 15, and now a 2016 touchbar 15. Personally after having the 2012 style for a few years, I absolutely am loving the updated keyboard, battery life, speeds and look of the 2016 design. But since you are coming from a 2008, I have no doubt you are going to love the retina MBP in general. With that being said, all things considered, if it simply boils down to cost, I would ultimately go with the 2016 as others have said, the price for ~ 3 year old tech doesn’t seem justifiable to me.
Glad to see this so called success story...Just another reminder that there are plenty of machines working fine that people don't post about because they usually have to reason to tell the world that its not broken...OP, take note of this. It goes to show that despite loud people complaining at every turn, there are still good keyboards that aren't broken out there.