Mate, I really reckon it is. And for 10 bucks, even if I'm wrong, you're not out of that much cash
I play 90% DnB too.
I play mainly the 'mono' mode (the most brainless one)which means: avoid grey bricks, catch the coloured ones.
In that mode if you play a slower song it gets quite dull but because DnB has such a high BPM it's by far the most exciting ride you'll get. So mono mode + DnB = twitch gaming.
If I see a graph of a song is sloping upwards (slow track) I rarely bother to play it
I find it's always fun to pick up every so often and play a new track you got.
The dethroned e-mails can keep you pretty competitive if you choose to follow them up. (which I do with cool music tracks)
Number of dethroned e-mails: 26

(you can choose not to receive dethroned e-mails too, but that's kinda boring)