Great for guests, good advanced programming
I work at RadioShack, and we sell quite a few of these things. We also have one out for demonstration purposes, so I get to show it off a lot. I get to play with it every day, so I haven't bought one yet, but I might if I stop working here.
The basic functions and "personality" of the Robosapien are quite entertaining, especially for those who are experiencing it for the first time. I would highly recommend it for a coffee table item, or something to start a conversation with guests. If you read the whole manual (not too long) you can really program it to do some great sequences of moves, even though the built in demo-modes are quite entertaining by themselves.
Another thing - it's REALLY sturdy. We've had one on display for almost a year now, and it has fallen off of boxes, been kicked and abused, and still does everything it did when it was brand-new. A set of batteries will last you quite a while as well.
Overall, I think it would be worth it, as long as you let everyone who comes over play with it.
Son played with it once!
I was more excited about the toy than my son until I took it out the box and started playing around with it. My 12 year old son looked quite bored and I was not very impressed after the first 30 minutes or so. My 9 year old thought it was more interesting, only he had alot of trouble with the commands and grew very frustrated.
Meh...unless you're rich or a techno-geek, skip it
My seven year old sister decided she wanted this and saved up her money for a year to get it. At the moment, she loves it, but I can just tell she'll be bored of it within a week. Sure, it has some cool moves, but $100? Nope, unless you're rich or a techno-geek who can program it. This is worth maybe $25, not $100.
Has staying power
Some of the reviews here complain about Robosapien getting "old" after an hour of play. Just wanted to add my .02. As an adult, I do think the novelty wears off after a while but then, that's true of most electronic toys out there. My 8-year-old son received this in Christmas in 2004 and he still plays with it a couple times a month. He taught himself to program the robot and makes up adventures for it. Was it worth the price? Hey, ANY toy my son is still playing with almost a year later was probably worth it. And Roboraptor is on his list for THIS year, for what it's worth.
Oh, and even after lots of play and being dropped a couple of times, we've had no paint chipping and the like. Not sure what others are doing with this guy to get that kind of damage!
Too weak and bulky
When I got the robosapien, I was extremely excited. Being a videogame playing teen, I got the robosapien for one reason and one reason only, to destroy buildings and other random objects that I set up for it. I was quickly dissapointed after using it because its arms are so weak that they cant even push over a small building-log building. Also, Robosapien is very clumsy for a nasa designed toy. The sensors on the hands and feet were probably the biggest annoyment of this toy, because the slightest touch stops all movement of the robot, and it cant even walk through a group of plastic army men without almost falling over. It was fun for a while and some of its functions I found very amusing, but it isnt worth $80-100. It wouldve been alot better if they hadnt tried to make this walk, because it wouldve been far easier to but it on tank treads or something, that way it wouldnt be so boring, at least wheels or something would be able to get up a slope. Also, I found the robosapien looking very fragile and breakable. Definately not a toy for small children. My opinion, get something else.