Well, it's hard to get into space. Moving "luggage" from Earth into space is an expensive process.
But the reason is that we have not yet learned to recycle rockets.
Since the launch of Sputnik 60 years ago, most of the spacecraft that have been launched are the Expandable Launch Vehicles (ELVs)
which fly only once. After delivering their payloads, they either return to Earth
burn in the atmosphere, or remain in orbit simply as "space junk.
Every time a new payload needs to be sent into space, it will cost millions of dollars to build a new ELV
Imagine for a second you were transposed into the karmic driven world of Earl.
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