I've been putting off starting a business because I can't find a name that I like with a reasonable unregistered .com domain that I can use. For example, if I wanted to use "perplex" as the name I'm looking for perplex.com, perplexit.com, perplextech.com, perplextechnology.com, etc.Nothing seems to be available, but I have noticed a rise in new startups liberally using boutique extensions like .ly and .io, and am wondering whether this will make any discernible difference to my business? I'm starting a security product business, which I suspect is important.