I bought a really nice washer/dryer set on CL before, it was a top of the line Kenmore and it's in our rental house at the moment. The only washer/dryer set I ever sold was our super-old stackable that I'm pretty sure was older than me, haha. Obviously I didn't ask or get a lot for it. Good washer/dryer sets do go really fast on CL, though. At least in NC and TX they did.
I have the Maytag Bravos 750 series, the washer has the power wash option and the dryer has the steam clean option. I really loved the red color but we bought it in the white because the floor models they had on sale were white. I think buying white instead of a color saves you about $200. We super-duper hit the jackpot with this set, they were floor models on sale, it was Texas' annual tax-free weekend, and they gave us a military discount - Home Depot REALLY hooked us up.
I can't remember from when I lived in Indiana if they had a tax-free weekend or not - most states run it right before the school year starts - but if they do you can really save a ton of money by waiting for that to roll around.