$250 is more than enough for a monopod...
I got the Manfrotto SS Monopod (Self-Standing)... and the monopod head for just over $100. (If I remember correctly)..
I personally didn't quite like the base of the monopod which is hard. I'd rather much like the rubber base of my previous monopod which allowed me to use it like a walking stick and didn't have to worry about placing the monopod ever so carefully on the ground without having to create a 'thud'..