A diagnosis may not be a good idea for everyone - I, too, have known for several years that I more or less meet said criteria. My reasons for not getting a diagnosis are mainly a mistrust of the criteria, a gut feeling some of what we may think we know about Asperger's now may be changed or useless information down the road. Now not everyone with autism related conditions is going to be able to be neatly fit into categories, I understand this, but I feel in the present there are many answers still undiscovered on what really differentiates a person with Asperger's with someone who may have those behavioral type symptoms for other reasons.
I have obtained government assistance by proving disability in the past couple years, with the disability relating to anxiety and depression. If I hadn't been able to, I might want a diagnosis for possible help in future endeavors, but it's really unnecessary at this point in my life so why get one?
Other people who know more than me might be able to help you see the pros and cons of obtaining a diagnosis, which I recommend you weigh before actively seeking one. Take care, friend.