i'd have to disagree, i think that macs do lend themselves to being more versatile in where they can be placed, sourcing power, cable mgmt. Sure you can buy a device that piggies on top or an all-in-one, but the all-in-one won't be aswell designed AND also cheap at the same time.
How does the environment its going to be in make any difference at all? Most likely it'll still be in a classroom, or in an office, but either way there's no specific advantage to Macs in these situations.
yep, if it ain't broke. I subscribe to that, but if it is broke i'd see little advantage in replacing pc for pc. Repurposing pc is a good idea, but if i was replacing i'd go mac.
I'm not anti-Mac by any means, I just don't see the reason for replacement in this case rather than using the funding to add a new suite with Macs, space permitting. In fact as there's already a Mac suite a new Linux suite might be interesting, really give the kids a chance to experience different flavours. But the point is, why rip out a perfectly good, functioning network of cheap, easily repairable, easily upgradable machines and replace them with pricey all-in-ones where the repairs require special tools simply to get the boxes open, on which large bits of your software probably won't run, or isn't supported (SIMS, as far as I'm aware, is not supported on Parallels, that's gonna sting if it goes wrong).