ode to roller coasters

You cause chills, thrills, spills
Looping around, upside down.
Nausea, joy, money are
What you bring.
You receive no appreciation
For all the work you do
Lugging heavy cartloads of
People up hill, pushing down,
All on a hot, summer day.
Repeating this process every
Day, week, year
Yet you continue tirelessly
Up, down, around, through.
All the drinks spilled, vomit
Thrown and sweat dripped
Is patiently endured.
When will you get your reward?