The system is hundreds of dollars cheaper than an Intel NUC. If you don't plan on running intensive applications or heavy graphics, then the Core i5-8259U-powered NucBox 2 will do the trick for your HTPC streaming purposes.
https://www.notebookcheck.net/GMK-NucBox-2-mini-PC-is-only-399-USD-for-a-limited-time-with-8-GB-RAM-and-256-GB-NVMe-SSD.532772.0.html