20,000,000 questions? I think I only have 2 or 3 answers and one of those is "yes dear" so Im probably little help. All id say is choosing by brand name and cost wont give the best choice, its your eye, type and focal length of scope, quality of the telescope (no point putting a $400 eyepiece on a $40 telescope) and what you want to do with all the above. Im into planets with reflectors so its University Optics for me. The difference between these and the widetelepansnobview ones isnt worth the extra money to me, I got bills to pay