Yeah, my daughter is 3.5 and still uses little potties at least 50% of the time. I was trying to get them out of sight, but now with a new baby coming soon I figure I might as well just get some out again and let her go at it!
The clear potty does have the advantage of being clear, obviously. It is twice as much as the BBLP, but honestly still $20 is SO cheap for how much you'll use it. You'll use it SO MUCH you won't believe it. And for so long. Any potty. Most people have more than one. One for the living room, one for the bedroom, one for the car.