I really don't understand this fascination with so called 24x36mm full frame.
I shot 35mm and medium format for years, thought about large format but couldn't be bothered to cart all that kit around so I never really got into it.
FF isn't the "Holy Grail" and it isn't magically going to make everything better or easier. Yes, you can crop more... big deal. Move a bit closer and you won't need to.
Ok, I'll accept that that is a vast over simplification, and if you've ever seen a good transparency from a 5x4 it's incredible. But I really do think it's being hyped up out of all proportion. It's just another format with advantages and disadvantages, no more, no less.