ARM or x86-64?
Because ARM wise, the XU4 can pull that off @ $62: https://ameridroid.com/products/odroid-xu4
x86-64 wise, the Chromebox can run circles around that nettop for emulation and approaches $100 for the Samsunug version…on AMAZON: https://www.amazon.com/Samsung-XE300M22-A01US-Series-3-Chromebox/dp/B007Y8DJEA/ref=pd_sbs_147_7?_encoding=UTF8&pd_rd_i=B007Y8DJEA&pd_rd_r=BQ5WHJWE7Q51GT4S67HC&pd_rd_w=dpSYr&pd_rd_wg=NbcGX&psc=1&refRID=BQ5WHJWE7Q51GT4S67HC (I’m only listing the Samsung edition of the Chromebox because it falls well within your sub-$150 price point).
Want an x64 shaped like a Raspberry Pi 3? https://up-shop.org/4-up-boards