Cello prices can be very random for a good one. Buying cellos on the internet can be very tricky because you can`t play them. I had a friend that bought a new cello and a few months later it was already breaking apart. The only gaurantee that you`ll be getting a good cello is if you either get a old 20ish+years used one or if you hear people praise a cello that they bought that`s being sold on the internet.
What Jack was trying to say was cellos with a very shiny coat (LAMINATED COAT

:O) tend to be of lower quality. Don`t get a laminated cello! Get a cello that is Varnished!
I bought my Full size 4/4 cello from a lady that was about 5ft 1/2 tall and I am 5 ft 10inch. A good NEW cello can be atleast $1,500 dollars and up. I played a great sounding cello for $10,000. I bought my used 150year old cello for $450 (It sounded as good as the $10,000 one

lol!), plus about $200 for fixing it myself.