I regularly ride my 25 year old Raleigh Technium Aluminum and steel epoxy bonded road bike frame. Its a converted two speed freewheel bike with high carbon steel (not even chrome moly...wow!) fork and stays and the three main tubes are 6061 Aluminum. I weigh 255 pounds and I have a few thousand miles on it with no problems. Its is just a matter of time though before the Aluminum fatigues or one of the bonded joints pop but then again, a steel dropout could crack or the fork could too. I'm trying to ride it enough to cause it to fail.....hopefully I'll notice any cracks before embarking on my next ride. I have plenty of steel bikes and prefer the material for its ability to flex virtually indefinitely without cracking suddenly. I figure most of the riders on this forum are lightweights and probably will never wear out any decently constructed aluminum frame. I'd be more concerned about some of the early carbon fiber frames.
The look of slender steel tubing seems proper to me unlike most extreme oversize or hydro formed aluminum frames. Go steel!