@mikebabb @bobstechsite I use an ex-corporate X220 that I got from eBay, complete with docking station. The eBay seller refurbished it and installed an SSD and it flies along running Debian as a 'desktop' machine.
When I need to travel somewhere, I take it off the dock and throw it in the bag, and my setup travels with me. It's nicer and quieter and more convenient than having a tower buzzing away all day, and uses less power.
I have been running it for >3 years and it's still perfect.