The professional equipment sounds the best, but the audio device alone (sans mic) was $1200.
These days, I use the pencil mic with a Scarlett device. It sounds good enough for my recording needs (I post-process everything regardless). It is out of camera, and pencil mics (or shotgun) are what pros use in camera studios.
If you don't mind having a big mic on camera, the Fifine is a lot of bang for the buck. If you are a brand person, go for the Shure.
A headset is great for minimizing sound when talking with others (say for a podcast interview), but I have yet to find one that is comfortable for using all day (I'm often teaching day-long courses).