system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Did Obi Wan use the Jedi mind trick on Han Solo?

As you may recall, Luke sold his speeder for 2,000 credits and was worried about the small amount, but Obi Wan said it would be enough. How did he know this? Did he have an ace up his sleeve?

&#x200B;

In the cantina, Han wants to charge 10,000 credits to take them on the trip.  Almost enough to buy a ship as Luke points out. Obi Wan offers him 2,000 with an additional 15,000 when they reach Alderaan.  Incredibly, Han accepts this offer.  He doesn't know Obi Wan or Luke. For all he knows, they could be flat broke and not able to pay another cent when they reach the destination. Maybe Obi Wan got an email from an Alderaanian Prince and think he's coming into credits, but he's not. Or maybe he's just planning to stiff Han. Han knows he's armed and saw what he could do with a light saber. Han has enough common sense to know it's far from guaranteed he'll get paid at Alderaan.

&#x200B;

The only explanation would seem to be that Obi Wan used the Jedi mind trick on Han. How can someone as street-smart as Han would take such a stupid deal?  Especially when he so desperately needed enough money to pay off his debt.
gpt
It's actually fairly simple. Luke knows nothing, Obi Wan knows a lot, Han knows more than Luke but not as much as Obi Wan, and Han thinks Obi Wan knows nothing. 

Basically, Luke's frame of reference for the cost of intergalactic travel is completely out of proportion, so his concerns are irrelevant. Han meets Obi-wan and Luke and thinks he can take them for a ride, metaphorically speaking. He asks for 10k because he figures they're either rich idiots, who will pay the price because they can and don't know any better, or poor idiots, who won't be able to afford anything like the outrageous sum he's asking for, and will leave him to get back to more serious business.  Obi-wan has had experience with much more dangerous brigand types than Han, he doesn't need the mind tricks to haggle. He counters by offering Han 2k, which is a fairly reasonable amount for what should be a very straightforward trip, then promises him 15k on delivery, which is an over the top offer. Han didn't need the extra 15k to make the trip worthwhile  for him, he was just being a bit of a dick.