I might be a classic case of OMY, as pushing 60 now, but truth is I never really gave that much thought to RE. And every time I set a "number," I'd revise it once I hit it - partly because I just wasn't ready to entertain FIRE and partly due to lifestyle inflation.
What I wanted most was to achieve FI and have the choice of what to do and how to spend my time. I'm a late starter in in the FI race, but worked hard to catch-up. I could have surely FIRE'd in my late 40's but felt I was mid-career and still very ambitious, so kept going.
By my 50's friends and family were scratching their heads wondering why is this guy still burning the candle at both ends as I was clearly FI. But, again I'm ambitious and had some things to prove for better or worse. I had also by that time set a rather aggressive NW target for no other reason than it sounded like a super-safe number. I don't plan on hitting that target now, not worth the extra years it would take, and certainly don't need it.
While still not RE, my priorities have shifted over the past year. The recognition that time is shorter than dollars really hit me owing to health scares, pandemic effects, seeing how folks a decade older are aging, recognizing agism has capped career progression, etc., all the usual "mid-life crisis" stuff.
I have a clearer path and vision of what I want now, which interestingly has allowed me to continue working, just in a different, healthier way. But, for sure, all the stories of FIRE I'm reading here are inspiration to make the transition.