The raspberry pis have been bad value for money for at least 4 or 5 years now unless you're really sensitive to the power draw. Once you add in a case and fan (required if you don't want it to overheat and screw the SD card), the charger, SD card it generally comes in at roughly the same price as more capable intel 1L PC like the Lenovo M920Q (though of course, they aren't new)
Yeah power consumption (and performance per watt) is the main reason I keep buying Raspberry Pi, I haven't find anything similar on that regard, specially for pi zeros