Moving away from stock UI
OnePlus One is a young mobile company that made a big deal about a phone with great specs that most people can't buy. They generated a lot of buzz through their invitation only program and ended up with a lot of media coverage.
Coming to Qualcomm reference designs
While it may have been overshadowed by MWC product announcements, Cyanogen’s partnership with Qualcomm could be a big deal in the long run.
Wanted too much cash
Impressive spec, Nexus-beating price tag