I have SaoPaulo.name and no offers for it when it was at auction with start about $30-$40, i dont remember exactly......so i hope this helps you in appraisal of realty.name
But some domain even in .name extension should be held till right offer comes.....i am so glad that i still have SaoPaulo.name and that i havent sold it for just $30-$40
Realty is an amazing keyword but Realty.name doesn't make much sense.
Forex.name is a good sale, but I don't think you can judge the value based on that. I would say resell value is about low $XXX unless you find an end user.