huge difference between a 6" dobsonian and a 10"? Would one notice a huge difference between a 6" dobsonian and a 10"? I've used a 6" and liked it and have about 500 for a new 'scope. The 10" from Orion is about that much. But of course if there isn't a massive difference, I could get a smaller one with an optics kit. Or in the range of 500 is there something better than a dobsonian? I am fine without the tracking systems. I'd honestly almost rather a manual one. Which would be better - a 10" and the lens it comes with or a 6" with an optics kit?