which lathe
I'd suggest you find a local turner and talk with them. Not to hear them rant about their lathe, but to see what they do and how. I know people that do knots with a bandsaw, table saw, and hand saw. I've tried all three and I've had it with knots (for now).
Read and read and read, watch videos, ask yourself questions and honestly answer them.
What do you want, what do you need, what are you going to make, how often, how big, is this something you might tire of quickly.
If you have no interest in spindle turning, a lathe with table extension is wasted. If all you want are pens or bottle stoppers, a mini should fill the bill. If you want bowls your grandkids can use as canoes, something like a Stubby would be a good place to start.
The kids could use a mini in the bowl some lathes can handle. There's a lot in between.
I usually suggest to people that they get the best quality tool they can afford that will do the job they want. What is quality is like asking what the best sandwich is - everyone has their answer. Peanut butter and damson plum jelly is hard to beat - unless you are allergic to peanuts!
I have three lathes. The old delta I got 25 years ago that I just can't part with (my son seems to have taken it over), the Jet mini I bought my wife, and the Jet 1442. Any of the three -or any of dozens of others - could be the perfect lathe for you- maybe.
If I had the money I'd get a oneway or powermatic but the ones I drooled over were in the $5000 range argh! not gonna happen on this fireman's income. I want to turn larger bowls. My lathe limits my size a bit but I'm happy with it.
I could have gotten a nova for the same price as my Jet, but I like the mass and weight of the Jet. They both had similar motors, and could turn simliar size pieces. Also having the Jet mini I can use the same chuck on both lathes. I'd never heard of ShopFox at the time (that's changing) and nothing else was available very close.
I started to get my last lathe at a woodcraft store. It is over an hour drive and we were in her car, stopped in and found "a deal". We came home to get my buggy and trailer, and I checked Jet's website and found a local dealer who had a regular price less than woodcraft's sale price. Not a lot less, but the hour drive one way with gas over $4 a gallon and my 12 mpg (without the trailer) helped sway me. I'm loyal- but to myself and family first. The place in town had it in stock and helped me set it up for free. No big deal but I wasn't sure for a bit.
Ask 100 turners the best lathe and you may not get 100 answers, but they'll have 500 reasons, 450 of which are personal opinions - which matter to each of them I'm sure!
Be sure of what you want. Used lathes are posted often on craigslist.com (not an endorsement- us at your own risk) They have deals and sometimes not so much.
Spend some time before you jump into something you might not want.
Hope this helped.