Our new designs (coming soon) will enforce a 60K rule. This is a good balance between allowing us to include nice imagery, a small flash and text, while not making the page bulky or slow.
I've seen some of our competitors having indexes upto 250K !!! That's nuts. Image optimization anyone
I would think it logical that the larger your page, the more impatient surfers you lose (as do your affiliates!)
What sizes do you guys try and stick to for indexes ??