Yep, an 8 inch dob @ F6 or there abouts is pretty hard to beat as a first scope. Its simple, stable, has a wide field of view, is not too big to store and best of all does not require a big investment. Collimation is reasonably simple to achieve as long as the manufacturer has put the centre spot on and taken the time to make sure the secondary and primary mirrors are properly mounted. I recommended a
neighbour buy one a couple of years ago and both he and his young son have had a ball becoming hooked on astronomy which is what a good first scope should do. Whats more they use it often as it is easy to set up and we all know the best scopes are the ones that get used. 
Mark