As TomR says, 'upgrading' to 200 amp service is more than just replacing the panel.
In addition to what I wrote in my first follow-up, here's more. Our service wire is underground too. We had to have the main that comes into the house from the meter replaced with a line that's capeable of handling the load. To be more clear on my original follow-up, if all I got was an upgrade which included the panel, the main line replacement, and the 20 breakers, it would have only cost us $975. But since I had 2 new lines installed, plus, a 60 amp breaker & wire to my garage, the cost went up $250 more.
So TomR and I are pretty close in our estimates. His was $1060 and mine would be $975. I could have gotten it done for more or less $$$ but this contractor had done 3 other upgrades in the neighborhood and I was able to see the finished product in other neighbor's homes. So I went with a proven electrician.
Best to ya and hope this additional info helps.
PS: TomR and I (as fate would have it) live about 1 hour apart. He on the northern side of Philly and I on the southern side.