Generally speaking
i know you can spend 3 days if you want but for general crowd is it 2-3 hours? 5-6 hours? 8 hours?

would like to know also. think it would all depend on what you want to see. just go fast stuff not long. start mixing in other stuff and stopping to talk to people will add time quick. I fly in tomorrow at 8:05 and headed straight there.

I spent six hours there, And I don’t think I scratched the surface

Correct, I walked and looked for six hours yesterday too. To really look at the detail of the variety of boats in water, plus the land side show, two days would have been a better plan for me.

I agree.
I'm an old original MIBS person , I haven't been to this new format at the Miami Marine Stadium but my brother has been to both. He says that the new format can't hold a candle to the old one . But one thing I'm certain of , if you've got money in your pocket to shop for a new boat or a range of accessories you could spend 3 whole days at the old show and still not see everything. And if there's ANY chance that Brownie is there , well there goes a chunk of time for sure !

I too have been to both, and I agree

I did it twice, on a short schedule and hustled both times.
Maybe 6 hrs both times??

Looking at only what interested me and I saw maybe 30 - 40%.

You need two days, words can not accurately describe the spectacle.