I FINALLY replaced two old (one pre-1980 and one from 1985) water guzzlers. I had been waiting until the water district here in Marin County put the Drake Eco on its rebate list (will only give rebates on the Drake Eco and the Aquia) and they finally made the list recently.
The price here was $256 for the EcoDrake EL and $48 for the soft close seats - we figured that was a pretty standard price and grabbed two. I gather that they can't keep them in stock for very long -- they tell me they've been very popular.
I couldn't be happier with mine -- what a difference from the old ones. Flush is really fast and quiet compared to the old ones too -- startlingly quick. I was worried about so little water to whoosh things away but absolutely no problems there either. Maybe it's just that they're the EL models and my old toilets were all Round, but the Toto seems to be a bit larger and stands out more, especially in my smaller bathroom. But that's really OK and just something to get used to. My friend who installed them had no problems whatsoever and he got them both in and others hauled away in just a couple of hours.
I never thought I'd be having a conversation about toilets and do so much research on them -- but I'm really pleased with these and think I made a great decision. Lots of the credit for that decision goes to Terry, his website and the forums. Thanks!