Re: repurpose old PCs
This is an interesting one and one which often requires a revisit.
The problem being that second user equipment carries a burden of responsibility on the supplier for electrical safety, warranty, etc. You also have to consider the time and labour taken up in doing all the data protection deletion, reformat, reload, etc. Also any upgrades to the old PCs required to bring them up to spec. to run even Ubuntu and Open Office.
A couple of times I have been through the numbers when we were encouraged to donate old PCs to local good causes, but to donate them in any kind of decent working condition and to meet our DPA and now WEEE requirements required such a lot of costable labour it would have been cheaper for us just to buy new PCs and give them away. We'd have got a better tax break doing that too!
When you are talking about the level of support I understand is being provided through the scheme then having a common platform, good working HW etc. is the cheapest part of the programme and is essential to any of the rest of it working without tying up the support staff in counter productive hardware issues.
If running old hardware with open source OS and apps was really the big money saver then all businesses would be doing it, and if it doesn't work in business then why would it work in the public sector?
I don't know who qualifies for these PCs so I'm not going to make judgements on it. I'll bet you can find good and bad which ever point it is you want to make.