I am gradually moving my domain names to NameCheap (for better control over the DNS) but annoyingly missed one that just expired. So I had to renew it for 18 UKP with easily.co.uk and also pay the NameCheap fee (around 6 UKP) in order to start the transfer.
I thought about letting the domain lie to rest in the vast graveyard of expired domains, but it is well aged, lots of back links, PR, and nostalgia attached to it. Like a family member. So I had to keep it, whatever the cost.