They can be addictive, that's for sure, I love getting them but I always think on what I'm going to get for at least a year or two taking the plunge with the exception of two of mine. I got a faerie silhouette on my shoulder when my mom was diagnosed with breast cancer to symbolize all the fantasy stories she read me as a child and then a purple lotus on my foot after she beat it to symbolize her making it through, those were pretty spur of the moment tattoos. I think if you're going to take the plunge to definitely think on it for a good while and weight all pros and cons. Also, research artists, read online reviews, go into shops and look at portfolios, talk to different artists, ask about their setup and prep. Find an artist whose work you like and who you feel is someone you'd want to do your work for you. Finding the right artist is probably the most important step in the process.