Most people do, that's what confirmation bias is. As an audio engineer, I can't remember how many times I've tweaked an EQ setting, thinking I'm making something sound better, only to realise I'm tweaking the wrong track!
This!!! Amazing how the mind plays tricks on you.
Several people are saying the 'legacy delay' sounds better. But I bet its the same too. Placebo effect!
It relates to packaging too. If you look at some boutique stompboxes I am sure a lot of what you 'hear' you are hearing with your eyes. Look at an ugly cheaply built pedal and it immediately clouds your judgement.