I just tested for my 2nd kyu (brown belt) in Aikido. I passed, which certainly made me happy, as it was a long ( 1 1/2 hour) and difficult test involving body arts and weapons. I wish I could devote more time to it. I need to train for 300 days before I can take my next test, and then 300 (or 400 not sure which) more training days before I can test for my black belt. It seems like a long jouney. But with 2 young children (boys 13 & 11), a happy marriage (unlike the previous one), and a demanding job, time is hard to find, especially at class times of 10AM and 6 or 7PM.
Aikido is not an agressive art: it does not involve attacking someone, rather blending with and redirecting the energy of someone attacking you. It can be very meditative: it has been referred to as meditation in motion, and sometimes I quiet my mind and achieve that. When I was younger, I studied a "hard" form of karate, and judo. Both were too competetive for my taste (now). The karate was also too violent, certainly in intent: when I left university I stopped doing karate, at first because I couldn't find a dojo with the same style, but later I realized that it just didn't fit me. I studied judo both in university and afterwards, but I contracted Lyme disease and was unable to do much of anything for 4 years. Afterwards, the Dojo I had studied at closed, and the other dojos nearby were too interested in competition for my taste. I studied yoga for several years, and I still enjoy going to the occasional class, but it wasn't physical enough.
Aikido, with an emphasis on self, does not hold competitions. One trains with a partner, rather than an opponent, a huge distinction. In karate and judo, one trains with an opponent.
I am also fortunate in that the sensei (instructor) is amazing. He teaches aikido full time, is unbelieveably good at it, and embodies all the best qualities of a human being. He has also become a good friend.