Mr K-E is in a bad mood because he is getting rid of his computer stuff - i.e. old bits of computers stored in his "den". It's all part of the plan to sell our flat in the summer and move somewhere bigger.
Anyway, he is stomping around, destroying old hard drives and generally being grumpy. I sympathise; I hate throwing stuff away too.
Look at this old ATARI, still in its original case. I think you can buy them on Ebay for about £2.50, so hardly an investment piece. He is putting it out for the council to collect tomorrow, along other assorted computer parts.