There is one good reason for the hydroplane for us non-tourney anglers. It's called lily pads.
The pads at my local will break 10 lb Max by mid-summer. And by September, they'll break 12 lb. So if you want that fish, you gotta get em outta the pads ASAP. The 8wt is best for that.
Having said that, I do enjoy slinging the small frog poppers with a 6wt early in the year when the pads aren't giant. It makes all the 9-12" fish more fun. I have lost some 3 & 4 pounders because of the 6wt though. That first 10 seconds is critical for LG. They can wreck you quick.
And the 7wt is always in the boat as the wet line and/or backup.