system
Given the following post, respond as if you're commenting on Reddit:
human
[Phantom Menace] Why not sell Princess Amidala's ship and buy a used one instead of all this futzing around with podracing in order to get a hyperdrive?

Or heck, just charter a flight to Coruscant and go incognito.  We know that hiring a "no questions asked" passage is possible from Tatooine.
gpt
Step One: Sell a ship without a hyperdrive. As this is a garbage planet, you're going to be taken to the cleaners regarding the value you'd get for it.

Step Two: Buy a new ship. Remember how you're on a garbage planet? A new, working ship isn't going to be affordable with the meagre credits you earned selling that *nonfunctional* ship to rip-off artists. Now you're stranded, with no ship and not enough credits to justify what you've done.

Chartering passage is an option, but you put your life in the hands of whoever is flying you. If you're Random Smuggler #7, that's not a real concern because your life is worth virtually nothing to anyone. But the queen of a planet, who pissed off some of the richest people around? The bounties she could fetch would be obscene. Would *you* trust some random criminal with that?

And keep in mind, they decided to get a new hyperdrive at first when it seemed like the far and away simplest option. By the time that it became clearly more complicated, Qui-Gon had become invested in Anakin's fate and any decisions from that point on weren't solely with getting a hyperdrive in mind.