Great discussion guys!
I'm currently coming from two vastly different experiences:
* A 1998 Honda Accord that I bought in 2003 with 78K miles, and drove until 2013, hitting 240K miles. At that point I gave the Accord to my dad, and then drove:
* A 2010 Subaru Legacy 2.5GT, that I bought in 2013 with 69K miles, and sold in 2016 with 112K miles.
Aside from the performance of each car, the biggest difference between the two was that the Subaru required a $6,000 engine rebuild at 108K miles, just 8K miles past its CPO warranty. The thing broke my heart and really salted me from owning another Subaru, ever.
On the flipside, my dad returned the Accord to me a couple of months ago with 335K miles. Yes, it's seen better days and it requires a quart of oil every week or two, but the damn thing *runs*.
No reason to go into all the details on why one worked better than the other -- I've beaten all of that to death in my head -- but I hope you have an idea why I was asking about Mazda's depreciation. I wasn't sure if it was something like the RX-8, where they go kaboom after 50K miles, or if it was purely based on good ol' devaluation.
It sounds to me from the replies that there aren't any glaring, obvious issues, but more so that they're not hugely in-demand cars, and don't hold their resale value well...
Which is great (at least now)