WOW, $177 for both haunts, the bus and the food? That is a great deal Tattoo!! As someone that has seen both haunts, let me put in my endorsement.
These are both really amazing haunts. I saw Terror this past year and it is really VERY good with amazing sets. Some as good as anything I have seen at Disney and Universal. I did not get achance to visit Burial Chamber this year, but I did go last year and it was also very good with very good sets. If you can budget in the extra $ do it. You will have a great time!!