The other end of the spectrum is tools like the Langmuir bed mill/router or the avid benchtop routers with available 4 pole spindles.
There’s a lot of options, closed loop steppers are sub $100, servos from DMM or teknic are readily available and awesome.
Sherline has a product set that just felt like a compromise on everything.
In the last decade, I’ve built 3 routers, rebuilt a bed mill, converted a Bridgeport, and am currently building an automated beam saw. All the options in the market are drastically better than they were 15 years ago.
It’s sad to see a fixture of the community going out of business, but it also a reflection that the business is different now. Given the many different kits and options available, it just doesn’t make sense to buy small work envelope machines for most people.