Not counting the time they spent with you showing you different options.
Don't worry about the paperwork that ordered the sofa to come out of the warehouse and get cleaned up ready for delivery.
And the person that walked in after you and wanted the same thing and was told they couldn't have it because it was sold.
Hold on here please. Those things are just the normal part of the cost of doing business.
I'm selling things which are roughly 500-1500 Euro - and require one hell of a lot of demonstration, explanation, technical expertise, experience, etc. There is usually 1-2 hours of this - and about 1 person in 10 buys.
Many say they would like the stuff and please reserve for them and they will be in Monday to pick up. Monday comes and they say they got some sudden dental expenses, their wife says no, they decided to take a holiday in Spain instead, etc.
I sure can't send them a bill for 'wasted time'
And I can't even think I could have sold it to someone else as usually there is enough in stock. If there really is only 1, and I think I really might sell it otherwise in that time, and the atmosphere is right , I might ask for some 50-100 euro deposit.
But other than that or a custom manufacture, one just have to take their chances when selling. Everything is not a sure deal.
But this guy still doesn't say if he paid a deposit or why he has a 'smile' in his post about now getting delivery.