These are all fair statements. Especially when you are looking for cards that are fairly common to find.
My expenses were:
$350 for 2 tables
$225 for 2 nights Hotel (my choice for Courtyard)
$75 in gas from Freeland Maryland
$20 splitting Hot Dogs with Wonka

2 1/2 days away from my family.
So I would have had to clear close to $700 to break even
Dan