I'll cease rambling now. I feel like an old man on this board sometimes.
You smell like one etc. Heh, no. I can understand that you're saying, and agree. But! For me, it's all about diversity. On my phone I have a playlist of songs that are all three minutes or less in length, and all straight to point, snappy, punchy, no fucking about. I also have one full of sprawling ambient, proggy stuff that sometimes can take five minutes or more to even really establish a key. Sometimes, such as if I am just trying to get from A to B, I'll put on the first playlist, and get properly pumped up, and can hear at least once song before arriving. Other times, I want to sprawl, have something pleasant on but also be able to not have to focus. Perhaps I'm tired, maybe I'm doing something else...
It's a shame that you don't have your Xbox 360 any more Marc. As far as this board goes, several of us have been trying to best scores at Decimation X, a quite hardcore, fun, Space Invaders+++ game that couldn't be any more pared down if it tried. Some other folk here, almost wholly different people, have been playing through Mass Effect 2, ruminating on the plot, in what is a dialogue-heavy, very verbose sci-fi story that basically wants you to make choices and influence the outcome. The two couldn't be any more different. But just as I've got time for a compilation of speedy little punk songs and another one full of twenty minute sagas, for me, I can see the appeal for the different types of games too.
The thing is though, I know this isn't for everyone. But what does annoy me is if someone is totally against one or the other "just because". Now, you've spoken your mind on why you strongly favour short-sharp-shock style games, quite clearly, and I respect that. Likewise, if someone were to totally lay into those quickie arcade blasts that require a challenge, whilst proclaiming that they only like say, Final Fantasy, I'd hope they'd have a strong argument.
But the two aren't SO different in one respect. The grind. Died at a bullet-hell shmup? Try again. And again. Do it, get better, try again. Likewise in a JRPG you're expected to keep repeating the same basic battles over and over again until your stats are good enough. In a very 'meta' kind of way, you're effectively training someone else to win an intense fast and brutal battle. Imagine if there was a JRPG where you had to go around besting metaphors for shmups until finally you are "good enough" to go take on the end boss of [some really hard bullet hell shmup that you'd know better than I would]. That'd be... a bit interesting, maybe.
You know what though? I can't stand Final Fantasy personally, and whilst I really love to *try* at bullet-hell shmups, I'm fairly crap at them. The game I have played most in MAME for example is Armed Police Batrider, but I'm crap at it, and no matter how many times I've tried it, I haven't noticeably improved.
Left between the games I dislike and the games that dislike me, I'm left with those games in the middle. The ones that aren't just overlong cut-scene marathons like Metal Gear Solid, but aren't minimalistic and brutal shmups. The stuff like Call of Duty where you get a fair amount of cut-scenes and plot, but also need to be *really* fucking fast in your reactions and accuracy (at least on a harder difficulty setting). They aren't all just story, but they also give me a comfortable 'buffer'.
I expect that as gaming becomes ever more 'casual' then there will be even more divergence until you are chatting over a headset with someone you just befriended on Facebook whilst playing Mafia Wars together, on a console. And this will be the 'typical' game. Give it 4 years. But when that happens, I *strongly* believe that there will be a counter-culture, providing exactly the sort of minimalist arcade thrills you're after.
Again, I point at Xbox Live. The last few games I bought were all less then a pound each, and either ferociously challenging bullet-hell shooters or like 'Run Away', give you just one life and just expect you to get good. So, have heart Marc! Retail might become a cold and depressing place, but there will always be good games being produced, you just might have to look elsewhere than the mainstream. After all, when has the mainstream ever been any barometer of taste

Sorry for the rambling length! :S