You could be refused entry to DISNEYLAND with a net ticket:(

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Most of the tourists visiting the Universal Studios won't bother checking them out within a year or so.

Very true!

On the crowd thingy - I don't know whether it was weather-related or FL / CA difference or an indicator of economy. Last year, same time period but in Orlando. The crowds at all three parks (disney / universal / seaworld) were nothing compared to this year's at disney or hollywood at CA