Playing any kind of video game is a time investment. When I do log on, I can play for 4-5 hours straight, but I have a fairly narrow window where I feel it's worth it.
(I also have a self-imposed in-game restriction, where I only play one character (I own two ships, but I'm only one pilot), who isn't part of any faction. So I have no motivation to log on for PvP events, unless it's a free-for-all.)