I'm not sure if this topic is still active, but I feel like it may have gone off on the wrong foot.
I have played the Touhou games up to 12 so far (only beat 9 on easy, still working on the others, closest I've gotten was 7, 10 and 11) and the reason I like the series so much is because it's so difficult. It forces you to changes strategies sometimes. I was used to doing straight shot up to 11, then I got more used to wide shot because I couldn't get past Orin (Cat/Girl, based off a youkai who carries corpses in a cart, morbid, I know).
Another reason why I like it is because of the "incidents", especially in 9. Most incidents are caused by other youkai, but in 9, it comes from the "outside world", our world. Apparently, every sixty years, a war happens that causes the souls of those who don't realize they're dead or don't accept it to take shelter in the flowers of Gensokyo, causing a massive bloom.
The music is also fantastic, not only as stage and theme music, but many remixes in many genres have been made, from rock to trance to even folk music.
I'm saying all this because I want to discuss with others why I like Touhou and my progress in beating the games, and to show others that Touhou is more than what was presented here.
Sorry for posting this months later.