How much $$$ for robotics?

I guys and girls
I’ve been learning eletronics for the past few weeks, with the objective of getting an arduino on christmas and getting started with robotics
by looking at components and tools (motors, metal pieces, 3d printers, arduino modules, etc…) they all seemed to be very expensive.

Am I looking for this things in the wrong place? Do I need to spend a lot of money to do robotics?

submitted by /u/FORCE4760
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