Is it worth getting a Six Pack Abs?

Ive been doing crunches and leg lifts for allmost 3 weeks now and it is really starting to show. Would it be worth going for six pack abs. I havent lost alot of weight Im still around 228. If it is worth it why would it and what are some advantages of having a six pack? I feel I can easily accomplish this.
Thats some pretty good advise king but , I think I am going to go with everyone elses idea.

Six pack abs is a clear indication of strong abdomen.
The advantages -
1) Reduced likelihood of back pain episodes
2) Gives you an erect upper body posture
3) Increases attractiveness
4) Increases self-confidence/ general good feeling about oneself

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