I've had some people suggest that I buy domains related to my website (i.e., the .net, .org version + misspellings). I agree with the mis-spelled versions because "sequitur" is pretty hard to spell, but I'm not convinced that if I need the .net and .org version if I have the .com version. Thoughts? It's not expensive relative to other expenses, but I'd like to not spend money unnecessarily.
In my opinion it is a wastage of time because everyday new domains are coming up you do not want to go down that road it would be much time consuming an expensive plus you will be needing to pay for them every year.
Most of them are even not relevant for instance you will buy a .org domain and you are not an organization or a .to domain which is mostly seen or searched in a specific region which is not maybe a place you can do business.
So in my opinion stick to a single domain a .com one.
I think it is a waste of money. It Is better to focus on other important things :-)
It's a waste of money!
Users default to .Com - the rest are noise. Save the money.
I would not put money on on additional.net, .org just to buy similar domains. There are several domain extensions (more than ten, if you count) Rather I would think of it to be unique so it would not confuse the customer/audience with other similar brands/names. Otherwise, if it is different by only spelling, then may be I would go for such additional ones. For instance, (a neighbourhood social network) neighbour (British english) and neighbor (American) are different by their spelling, but could confuse the website visitor to what to type for the url if the audience is across the globe. I would register both the name for my site if my customer/audience is across the globe, while directing one to another parent .domain.
Hope you got the point.
Good luck :)