Float Tube Users - PFDs?

[Scott N]

Just curious as to what kind of PFDs to you guys use when using a float tube. I've had an old tire tube type Caddis Belly boat that I've used for years, and I have never (perhaps foolishly) used a PFD while using it.

I just upgraded my old Caddis tube to a new pontoon type float tube, and I've been thinking about picking up one of the self inflating type PFDs. They are pricey though, and I like to wear my fishing vest while fishing. What kind of PFD are you using, or are you using one?