True, but there is no accounting software that is either open source or on a perpetual licence. Kingsoft is a decent replacement for the MS office product and at least MS honour the old software - our office 2016 DVD will still install and works OK even if it is not the latest version.
The Sage is the one pissing me off right now as it has given me a lot of grief. Our server needs replacement (2008 R2) and the idiot that came to hook up a Win10 PC couldn't connect it so our LAN really needs an update or go Win10 peer to peer. MS (spit) promised 10 was the last ever OS but now they have 11 and 10 will run out in a couple of years. Basically I need to spend a few grand to replace a LAN that works just fine. A new server - hardware - is less than 500 notes it is the OS and all the other stuff that makes it expensive.
While I am moaning (sorry) all the hardware thrown away tends to end in landfill. (I recycle - most don't) or you have to pay for WEE collections (£20 per PC at our commercial tip) [PS Currys will take old PCs free - but no WEE certificate for the business]
My old catalogue is in Adobe and you cannot convert it to another format so stuck with that. As a result we junked the catalogue....