Just got the following news via email. It looks like .net and .org domains will have their price increased starting July 1st 2013:
As one of the many differences between NameSilo and other registrars, we make it a priority not to bombard you with emails unless we believe there are things you should know regarding only the very core issues related to purchasing or managing your domains with us. To that end, we wanted to let you know about 2 price changes that will occur on July 1, 2013. These increases are the result of the registries for the associated… Continue reading
OnlyDomains.com appears to have the lowest pricing for .XXX registrations so far.
While most of the other registrars sell .XXX this month at promotion for $9.99 and above OnlyDomains.com has lowered the price even more to $8.99 for first year registration.