I don't buy telescopes often, but when I do, you can bet your buns they came cheap. I saw my dream scope online, I immediately bought a used primary, a sheet of birch and a router. My scopes don't have coma, they have delicious taco stars.If we are at a star party with identical scopes, I paid less for mine. If I look through your eyepiece, the resale value declines. I don't use 100* eyepieces, I look through my plossl...twice. The cheapest astronomer in the world