First, thank to all of you for taking the time to respond; this was a sincere (I'd say serious, but I'm rarely serious) question that had been bothering me - sort of like having a group of people ooh-ing and ahh-ing over a work of art that when I look at I go "huh?"
Second, I agree with rinkwide - there are very few sights in this world that can't be improved upon by knocking back a fifth of tequila in 90 minutes.

. Honestly, beer / wine came up an awful lot in this thread....
Now a few more serious (I'll try) comments.
From all the comments, I see two big things that give me trouble with Epcot: DW and I find dining at WDW to be one of our least favorite parts of a Disney trip; and I guess that I still have a bit of a "what ride are we gonna do next" mentality. Yet many mentioned eating at Epcot to be one of the "plusses"; also, strolling / people watching / general.unfocused.being.there seemed to rank high.
One other thing that occurred to me only after reading this is that, in all our trips to WDW, I can only remember being at Epcot after 2PM twice: once in the early 90s for our first Illuminations, and MH last May. I always associate WS with staggering around after a long morning at FW, sun beating down on me, waiting to get back to our room.
So, this trip I think we'll try a few things: arrive later in the afternoon, a meal at Germany (we've always threatened, but never done it), and strolling around noticing the little things (hey, I can make a list of all the 'little things' I'm supposed to see, and check each one off when I see it!

). Oh, and try to make an effort to catch the entertainment (I hear many good things about some gents who take their kilts off

)
I'm pretty sure that my "Epcot Fade" is caused primarily from doing the same thing, every time, every trip: arrive for rope drop on non-EMH morning, do FW, grab a bite at The Digital Bumbershoot, then fatigue our way through WS, stopping at AA to let Mark Twain lull us into air-conditioned slumber.
So, thanks again - I got a much better understanding from all of you who lurve Epcot as to why, and I got a little comfort that I'm not the only one who feels this way. I caution you Epcot cheerleaders - just hope you haven't done such a good job that I feel the need to get B_V add-on!
Now, for something completely different:
JimMIA: I guess Epcot would seem different if DW went off to shop, and I sat and had a beer.
bobbiwoz: we'll be there during F&G, so we'll try to catch one of the concerts.
Caskbill: My DIS account still works - thanks!

And DW and I went to DLR for the first (and only) time in Sept 2002 (were there for the 1 year anniversary of 9/11: nice, but sad). Anyway, SOC was indeed my favorite ride; we stayed at the GC, and their entrance to DCA was right by Soarin - so we got the jump every morning.
gopherit: I think part of the problem with FW is that Disney didn't learn from Tomorrowland how hard it was to keep up with the future (I love the retro-future look TL has now!). I mean, Ice Station Cold is interesting (and the Beverly gag never fails to amuse me) but "The Future" it ain't.
To all Canadians: I grew up in Detroit, so I developed a special fondness for our neighbors to the south (look on a map!). The CMs at Canada are some of the nicest - and chatty-est - in WDW. But I agree - the movie seems more and more like "Canada Of Yesteryear". But I'd be happy if they just showed reruns of "Mr. Dressup", "The Friendly Giant" and "SCTV"!
Be well, all!