Listing time to Buy It Now in 1 hr 11 mins and collecting this evening.

Either they're desperate, or I well underpriced it to start with

Oh well, never mind I just want shot of it and I haven't got the means to take it down to a scrap dealer and weigh it in myself...
EDIT:
Hmmm yep, just checked their purchase history and this'll be the 5th one they've bought since April, so either they're very unlucky, or they have a lot of houses, or I messed up (the latter).