I go almost every year. Here are the reasons to attend:
1) you'll see the latest models from all the manufacturers (and what you can adapt to "modernize" your older POH renovations).
2) you'll meet the guys from Clayton that work on the CASH program.
Here are the reasons not to go:
1) you'll see the photos of the latest models and design concepts in my monthly newsletter.
2) it's not really more than a couple hours of entertainment before you've seen everything.
So the bottom line is that it's definitely worth driving to if you can spare the time and have some vacant lots and POHs to remodel. But don't rack up a big travel expense or you'll be unhappy -- you'd be better off using that money going to the MHI event in Las Vegas in April, where you'll make many more contacts.
The #1 reason to go would be if you have a park with a lot of vacant lots and want to get involved in the CASH program from 21st Mortgage and Clayton in a big way, and want to scout out all their models and choose what you'd want the homes to look like before ordering. If that's your case, then it might even be worth a cheap flight if you're far away. You won't see such a diversity of single-wide models on any dealer lot in the U.S.
But if you're looking at choosing between Louisville and Tunica (the other home show) you would definitely want to go to Louisville. Louisville is an indoor event and Tunica is outdoor (and either too wet, too cold or too hot). In addition, Louisville is a really great city with world-class museums and dining, while Tunica is a downscale casino town that seems lacking in charm.