It's true to say Universal has a lot of 3D rides these days, but do a count and Disney's number if very similar.
If you'd spent multiple days at Universal then the daily cost would be way down on that. You're comparing apples with oranges there.
But as we all know, 1 day costs are virtually identical at Universal to Disney. Universal has the cheaper multi-day tickets, annual passes (hugely cheaper) and massively cheaper hotels.
Transportation, you don't need any at Universal at-all and it's free if you do.
When you say you run out of things to do...what about Duelling Dragons (or whatever it's now called), Minions, ET, T2, Revenge of the Mummy, Rip Ride Rocket, or the Horror Make-Up Show? Plus many more.