Earlier quoted context omitted.
It's about paid customers and not only friends. Paid customers expect a smooth service. At the moment I have multiple (virtual and physicall) servers around the world to both host and deal with nameservers. This solution is time and money consuming, so I am moving to a different approach. A single shared nameserver does not grant a 100% uptime and costs 2x the price of the business plan that company I linked earlier…
Since when was running named on a pair of servers (put one on linode and one on slicehost for redundancy) not work for all but the larger companies? And by the time you are that large, cost of name servers is so insignificant as to be round off error. I always used to think that I was missing something special about DNS - I mean, it can't be as simple as configuring named.conf for a master and slave, creating a zone…
Alright: it's USD480/year (plus administrating those two servers) vs. USD58/year but no, "cost of servers/internet isn't a reason". Ok, great.