I want to thank everybody for chipping in. I haven't decided yet, I got time till spring. But I have to tell you all that this forum changed my thinking about tractors already.
No more HuskandSharawma for me, it's a nice lawn mower but it's become clear I need more. I won't buy a big tractor, that's too much for me but I'm thinking of moving up from John Deere X500 series to a SCUT.
I'm also going for a John Deere exclusively. I saw this video about Kubota BX25, at 2:22 min. Eric explains a design flaw with the fuel line. the vid. is here
So I would find it hard to trust a company that makes such bad designs. Although many Kubotas may serve people well I don't have time to take chances, since I'm not a mechanic.
As for the idea that buying an older tractor is buying a reliable machine, because "in the good old days things were made solid" I have this video, which some may have seen. Listen to the guy at 16:44 min.
So now I believe I need to go Green, and I need to go a little bigger. As much as I can afford to strike a balance between size, price and year/hours.
I will post my choice at the latest in May 2020.
And I hope I can still ask you guys some questions as time goes by.
thank you very much