Last week they sent me an update/addon for a TI Emulator. I haven't fired it up yet, but it's a great idea. You can get some experience with IoT without having to have a device.
One thing I'd be interested to see is if the emulator connects up to the Arduino/Pi SketchPad IDE. I connected my actual TI device to it no problem, so I don't see why not, but it will be interesting to try.
The popular MPS-EXP432R Launchpad costs $12.99 and you can get that and a Wifi Shield for $29.99.
The 432 Launchpad is meant for battery operated field operations. While a Raspberry Pi 3 has a 1 Ghz/Dual Core CPU (amazing), the 432 Launchpad is a 48 Mhz low power processer that is said to draw something like .7 or uAmps (660nA RTC ) in idle mode.