Soldato
Trust me, when you get to the 11th hour before exchanging and there's one tiny hold up preventing you from exchanging that looks like it'll threaten the entire chain you'll have a different view.
We broke our chain and lived out of suitcases for 2 weeks, but at the time had no firm completion date for our onward purchase but it had to be done. The thought of remarketing and going through all that again whilst standing to lose the place we'd searched high and low for is a very motivating prospect lol.
Fair comment, we'll see how things go. In my mind at the moment we're willing to box up the unused stuff and possible shift to friends and family, with the thinking that if the purchase of the property we sought fell through, we'd still sell ours as it's a FTB, but move back to parents place for the short term. Saves money, but also then puts us still in a position to move for another property without the pain of selling ours.