There is a bug that can give you money. First stack about 8-10, or more base blocks high. Do this for, say, 4 rows. After you've done that, it should look like a 4X4 box, 8-10 stacks high. Then place a flat ride, the more expensive the better, in that block. The bug is that when you put the flat ride there, it gives you THOUSANDS of dollars. Then if you remove the ride, you get the money for it. It works, trust me.
I don't consider this cheating, I consider it building a box and building a ride inside for future expansion. =^)
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My mind works in strange ways. Yeah with a chain driven lift hill and gravity.