First I'll say I can't see the photos, as most photos are blocked at work.
That said, sure, you can find lots of nice horses for $1000 or less, but some, even unregistered, still bring more. A lot depends on where you're at. Here, even grade "rockies" bring real good prices, and to me, his horse is priced lower than it could be... at least where I"m at. So I disagree with the above poster on that. I sold an unregistered RMH for $3500. His price was ONLY that low because I was upset about him having some loading issues (trailer loading), which is a big deal to me. He sold easily for that, and I could have asked more and still been ok. I will admit this was about 2 years ago, prices were better then, but still. A lot depends on the area, I'm sure an area where RMH aren't "rare" would bring lower prices. Here, there aren't many of them around.
However, pictures ARE very important, when you're selling a horse. Get GOOD ones. If you have a digital camera, get a helper (or two) and snap snap snap away! My husband hates when I do pictures... I hold the horses (he would be clueless how to set them up lol) and he gets to squat down (talking minis here) for a long time taking hundreds of photos, in which I hope to get a few good ones out of the lot ;) But, a picture is worth a thousand words! :) Horses with good photos sell better, so it's highly worth the time to take good photos. Clean horse, well groomed, nice background (clean, uncluttered, not distracting), ect. Good luck! :)