For 2019 I am upgrading my mini colocated host to
- i7-8750h (Coffee lake, 2.2 - 4.1, 6 core / 12 thread) - $460 on Ali Express
- 32GB RAM – DDR4 (16GB × 2, $220)
- 500 GB disk – NVMe PCI Samsung 970 Pro ($200)
CPU comparison here – it’s a big jump in TDP, 2 cores to 
6 cores. Increase from 16GB to 32GB of faster DDR4 RAM. Plus a real M.2 NVMe drive, which is considerably faster than the old SATA interface style.
Full specs
Model Number: Partaker B18
Color: Black
CPU: Intel Core i7-8750H Processor (9M Cache, up to 4.10 GHz)
Platform: Coffee Lake, 8th Generation Intel Core i7 Processors
Threads: 6 Core 12 Threads
Graphic: Intel UHD Graphics 630
RAM: DDR4 2133/2400/2666 260pin，2 SO-DIMM Slots, support up to 32GB
Storage: M.2 Nvme 22x80 SSD + M.2 NGFF/Nvme 22x80 SSD + 2.5’ 'HD
WiFi: 2.4G/5G Wifi B/G/N/AC+bluetooth
Operating System System: Windows Or Linux
Network Card: 10/100/1000 BaseT LAN
I/O Port: 1xHDMI + 1 Mini DP + 1 Gigabit LAN port + 4 USB 3.0 + 1 Type-C USB port + 1 Audio Port
Power in: 5.5mm plug in
HDMI Output: HDMI Support 4K 24HZ
DP Output: DP Support 4K 60HZ
VGA Output: VGA Support 1080P
Power: In: DC100-240V AC/50-60Hz Out: DC 19V/3.42A, 90W
Operating Temperature: 0°C~80°C (32°F~140°F)
Storage Temperature: -20°C~80°C (-68°F~176°F)
Relative Humidity: 10%~90% (non-condensing)
Thermal Design: Low Noise Fan
Size: 197 x 197 x 40mm
Weight: 1.5kgs
Package Content: Partaker B18 Mini PC, Power adapter, Power Cable, VESA Bracket, Screws
@pfaffman once these are swapped out I’ll mail you my old boxes, which are still trucking along just fine.