Java_avaJ Wow £199 to repair a machine costing £500, they are taking lessons from BMW. Could be somethings shorting out or getting hot on the machine, a loose connection somewhere. Your consideration is, now out of the honey moon period with it, these next few years are the time when things start to go wrong, possibly more regularly and you will need to keep spending money on it..
in offering you 40% off a new machine, I would guess that’s on the Sage website price of £630, so a cost of £378 a saving seemingly of £302. Which makes a new machine far more compelling than spending £199 on an old one. If you can repair the old one then you can sell it on ebay, or sell it as it is. Of course the street for the machine (Amazon is £501 so in reality a saving of only £171.
So the question is spend another £378 with sage….and get a guaranteed 2 more years, possibly being able to sell your unit for £80-100
or Upgrade to something else..with significant expense, but self repairable and with parts availability.