Latest Nest is £199, but you can get the old one for £144 in Screwfix. Which is a bit annoying for me as we're having two and I found out today that our builder has apparently somehow managed to buy two of the old ones for £240 each (sigh) but maybe a cheaper alternative to the Hive?
Yeah, the new one is £250.
Convincing the financial controller this is a good investment is a bit, er, tricky.