I've been thinking this problem through lately, because I'm a bit stuck here too. I think, and this is just my opinion, that building datafeed sites could be of much more value in the long run (depending on how many pages you can churn out), rather than simple redirect pages.
In my current project, it's a difference of a one page site, or 5000+ indexable pages. I'm thinking the latter might prove more beneficial and profitable in the long run, even though the user has to click a couple more times - simply b/c of volume that the SE
's might provide later down the road.
I'm leaving out many other variables that I'm sure are important here, but I wonder if this thought process is correct..?