I thought I'd read that was kinda the deal with the old FX line from the start, it was midrange i5 money (or less) and wasn't toooo far off it performance wise most times, and was even able to punch above it's weight class at some i7's depending on the app, at the expense of some heat and power.
FX was i5 money for less than i5 performance on average, i3 performance in some apps like games and i7 performance in a few things like rendering and compilling, that at the expense of *a lot* more power and consequently heat. And don't forget the ancient platform. It was from the start a really bad proposition for the general case and one that just got worse with the time, you would have to really ponder whether the FX was your cup of tea. If you use more of the best case scenarios for the FX then you would find great value on the processor, if you don't, you'd end up with a dog.
It's more or less the same case with the A series except that you also have to factor in the big iGPU and the platform is not ancient. I think for a non-SFF HTPC the APUs are great value. If you want a low value workstation with professional drivers APUs are great too, but stray too much from these scenarios and you are likely to have more value for your money elsewhere.