So I'm working on what will become a paid directory. I'm having a hard time coming up a domain name. The ideal domain name is available if I use a 'Z' instead of an 'S' for the plural in the domain name. For example, islandtripz.com instead of islandtrips.com. Island trips is just an example, but it's very similar to my niche. Using a Z puts me a little on edge, but I've been having such a hard time with the domain and the available domain is the number one keyword for my niche. What are your thoughts?