I think you'll find that the PICAXE environment is primarily aimed at the education market and those who are beginning (or returning) on the electronics/microcomputer path, but they also have value for quick and very easy development for small projects. Most readers on this forum probably have a very good understanding of programming and MCU's and dismiss anything programmed in basic as very ordinary and when you look at code size and speed you would be absolutely correct, but it is very easy to dismiss the simple products as not useful.
For a first time user with minimal electronics skills and no programming skills they can set themselves up with a PICAXE 08m2 for about $3.50 and a serial cable (or just about any USB to serial cable) for a couple of dollars, a battery and a 2 resistors and everything else is free. You can even write your whole program, run it on the simulator, change inputs and watch outputs without buying anything. There is a very friendly and helpful forum with users ranging from beginners to skilled engineers.
Compare that to the PIC world. You have to learn a non-intuitive IDE (think beginners here), buy a PIC (about $2.50 at element14), a programmer/debugger such as PICKIT for $50+ and then study the datasheets etc to try and make anything work.
Have a look, you might be surprised