I am shopping for my first (adult) telescope. I have settled on the matsukov/cassegrain design. As I live in an urban area with little room I think a newtonian is out of the question. My original choice was the etx 90. Then they came out with the 125 and celestron has their line. Now I have discovered the Intes line as well as Orion starmax. I am in a quandry as what to get. So is goto worth it? It appears I can get more aperature for my money without it. Does anyone have any opinions on the quality of Intes or Orion? I have read mixed reviews of both. Finaly should I buy new or used? Thanks for any advice.