Totally lost me at the "Amazon ... is a net good".
And maybe because I choose "unusual" domain names, I've found buying them to be relatively straight-forward. There are now so many top-level domains to choose from that you can usually concoct something that works well with one of them. Admittedly, these haven't been names for "startups" - they're for small businesses and local groups, but it can't be that different.