Most Epson printers are basically a throw away printer if the head goes.
To spend $7k on a new Epson P10000 and then your choices are to buy the expensive after market warranty or you are on your own after a year is not very encouraging.
As a single data point (which doesn't prove anything either way, but might be helpful) I took a chance earlier this year on a 2-owner SureColor P10000. It had a very low serial number and very little use (178 pages total printed). I took that chance based on a 100% good nozzle check and a good status sheet which showed no errors, ever. As you may know, these printers store their entire usage history "from birth" which can be retrieved with the regular Epson user utilities and there is a battery-backup calendar in the printer as well so the timestamps are correct. Here is a summary of the idle periods:
1/25/2017 -> 4/15/2017 - This printer got regular use through late January of 2017, then went idle
4/15/2017 -> 6/16/2017 - 3 jobs printed in the middle of June 2017
6/16/2017 -> 11/3/2017 - Printer idle until it was sold to 2nd owner in early November of 2017
11/3/2017 - Second owner prints a single job
11/3/2017 -> 6/17/2018 - Printer sits idle until 2nd owner sells it to me
6/17/2018 - Second owner prints nozzle check (100% good first time!) and status page and emails photographs of them to me, and I agree to purchase the printer
6/21/2018 - Printer arrives here and I confirm 100% good nozzle check and status sheet, and I place the printer into service
I have had a few auto nozzle checks say cleaning was required after jobs that printed on media that tends to shed. The problem cleared after a single pair cleaning. Most of my print work is > 10 feet long on 44" roll paper.
That being said after being an Epson man for 10 years with 7 Epson's on site I am not excited at all about changing brands.
Starting from scratch profiling all my papers and canvases when everything is presently nailed so tightly.
Decisions, decisions.
Either I got the only clog-free Epson or they have actually resolved almost all of the issues. I was quite concerned with the "8000 nozzles, all of which have to work perfectly" of the SC-P10000 but it seems to be a non-issue.
Having said that, if Epson offered second (and subsequent) owners the opportunity to purchase a support agreement in the US, I would probably have done so, just for peace of mind. It would be really great if Epson would harmonize their support policies worldwide - here in the US we only get the 1 year warranty included, plus an optional paid 1 or 2 additional years of parts and labor. In Australia, you can buy up to 5 years of coverage with either parts and labor or parts only coverage. From what someone else here posted, in parts of Latin America there is only the 1 year warranty and apparently no additional support agreements are available beyond that.