When I leave Gen Con on Sunday, I always want to have one more day for gaming.
I really wish the convention would start on Wednesday, and go for five days instead of four.
I think there are a lot of people that would agree with you.
I'd also love to see Gen Con take another shot at a 2nd Gen Con again.
Eh, I think four days is about right for GenCon. They say "always leave them wanting more," and I think four days accomplishes that pretty well.
Plus, one of the stumbling blocks I've heard about as far as extending the convention's duration is whether the vendors can afford another day. And I imagine the cost of another night at a hotel might make make some attendees not look well on the idea.
For me the con is Wed-Sunday. Kentucky Fried gamers runs games at The Ram and Scotty's on Wednesday. There are official free games on Wednesday. Wednesday night it is the food trucks and the band.
However, I do echo your sentiments, I wouldn't mind "The best five days in gaming".
It's a 5 day con for us. I go to Trade Day on Wednesday and my family games with KFG. Then we go to the Stink on Wednesday night, and my husband plays a NSDM game. So Wednesday is a full day, if that's what you want.
As much as I love Gen con, I start Wednesday and leave Sunday. If anymore days were added I'd probably die from exhaustion, lol.