Well, don't be too quick to dismiss Far Eastern offerings. Available in different sizes, which may be vital in a cramped workshop; can be bought off the shelf with delivery sorted; and there's a warranty if you're unlucky enough to get a dud. Bit rough, but they work well enough for most hobby purposes.
If you have the space ex-industrial/ex-educational mills are available for a fraction of their original cost, but they are mostly too big for my single-garage workshop. I couldn't quite fit in a Bridgeport. Though 3-phase is less problematic these days, industrial machines may have awkward electrics. And although the machines in this class are cheap second-hand, spares are still full price. (Like new bearings costing much more than was paid for the whole machine.)
Condition is everything buying second-hand. Although many hobby machines are well looked after there are no guarantees. I wouldn't buy a second-hand machine tool without inspecting it, ideally listening to it cut metal. Remember a clapped out top-notch Swiss Jig Borer is clapped out, nothing like as new, and could be scrap. Condition matters less if doing up old machines is all part of the fun, but beware of time-wasting money-pits if the plan is to crack on and make things.
Dave