Intel is almost giving away Bay Trail-T CPUs to try and claw marketshare away from ARM-based CPUs/SoCs. As an example, Intel's advertised price for an Atom Z3735F (quad core, 1.33–1.83 GHz, 2.2 W SDP, 2 GB RAM max., Intel's Gen7 graphics) is $17, but I've read that the "real life" price dips under $10 in volume. This is an absolutely mind-boggling price for a quad-core x86-64 CPU with really quite good integrated graphics.
An exciting (to me, at least) development is that OEMs are starting to produce sub-$100 HDMI sticks with Bay Trail-T CPUs and 16 GB–32 GB of eMMC storage inside. Assuming the firmware isn't crippled, those sticks should be able to run unmodified copies of any modern x86 operating system. On Linux and FreeBSD, there is stable, functional, non-proprietary GPU support, which is a huge win over the vast majority of ARM-based systems. (Even the "OPEN hardware and software platform" Matchstick is currently chained to a binary blob because of the Mali GPU. Maybe one day the reverse engineered Mali driver will be awesome, but it's not there yet.)