The short answer: it depends. For a personal one-off without any chance of profit? $10 (or whatever a 1-yr reg is). For anything else, it would be some spectru

The short answer: it depends. For a personal one-off without any chance of profit? $10 (or whatever a 1-yr reg is). For anything else, it would be some spectrum depending on how profitable/viable the idea was, balanced against how important the domain name in question might realistically be to success. But usually, it seems that the domain matters far less than just about everything else (so long as it is usable, reasonable length, etc).