For me, I feel the biggest disadvantage is not getting enough time left to socialize with other people or spend time with friends or kids.
I work from home but still can't manage to spend much time with my kids specially when I have lot of work to do. These online activities eat up much of my time. I would also waste a lot of time in needless distractions like reading too many forum posts, clicking on people's signatures and being led to something completely new, downloading free reports people keep offering and then finding that more than half of them are rehashed content after I spend so much time in downloading and reading that stuff.
After so many hours spent in front of my laptop in productive as well as unproductive activities, I don't have much time, mental stamina left to want to socialize with other people much.
I feel this is one of the biggest drawbacks of being an internet marketer.
What do you feel is the biggest challenge or drawback you face being in this field?