Tribal tattoos have been practiced for thousands of years. Modern people still get them done for many reasons such as to belong to a modern 'tribe' even if they do it on a subconscious level. Getting tattooed was also seen as a rite of passage into adulthood.
Body piercing has seen a resurgence of interest in the last ten to twenty years and are becoming more and more a part of the mainstream Western culture. Take a look at any fashion or entertainment magazine and you’ll see plenty of well-known celebrities with body piercing like navel rings or a labret.
However when you post a job for a custom tattoo design online you will frequently have 5 or more artists all bidding to do the work for you. Having more artists means you are more likely to find a tattoo artists that better fits with the style of tattoo design that you are looking for. Further more as we all know when people compete for your business you get better quality at a lower price.