You completely misunderstand the Pi families and current line-up, and that's caused you to misinterpret my comment. There aren't "A" variants for the Pi 2 or P

You completely misunderstand the Pi families and current line-up, and that's caused you to misinterpret my comment. There aren't "A" variants for the Pi 2 or Pi 3. There's the Pi Model A and Pi Model B, A+ and B+ (which are slightly upgraded versions of the original Pi), the original Compute Module ("CM1", based on the Pi but in an SO-DIMM format with 4GB eMMC Flash), the Pi 2, the Pi 3, the Pi Zero (upgraded to v1.3), the Compute Module 3 and 3 Lite ("CM3" and "CM3L" based on the Pi 3 but in an SO-DIMM format, with and without 4GB eMMC Flash respectively), and the latest addition, the Pi Zero W (Zero with built-in Wifi and Bluetooth). The Pi 3, CM3, CM3L, Zero, and Zero W are what I'd consider current. But you can still get Pi 2, or the A+, on RS for example. In the UK, the bare Edison module is £47.34 on RS. The bare CM3 (with the 4GB eMMC) is £26.99, the CM3L is £21.99. The Pi 3 is £32.99 (which is directly usable as it has ports already on it.) I'd bet you a Pi Zero that the Pi 3 would piss all over the Edison in sysbench CPU if you ran both the Edison's 2 main cores against the Pi 3's 4 cores.