This is either an extremely uneducated appraisal or a frivolous joke. There is no sense in this. :yell:
I'd say probably around $1000-1500 since the domain is on the low-end of the quality scale when it comes to two-character .nets. I only say this because it doesn't roll off the tongue and it can be mistaken for 10.net when spoken as "one-oh dot net". Of course, most people would just say "ten dot net" if it was 10.net but...