There definitely are a huge number of things that will arise to be on the top 50 desired list. However, if everybody has a respectable existence -- rent/mortgage, food, utilities being covered -- then these other things will be truly and for the first time optional and non-crucial. Which I think will be a big win for the mental health of the population.

I wager that a limitless supply of "other things to buy" will spring up, just as it already has today.

Clothes, cars, boats, planes, watches, electronics, vacations, fancy meals, you name it...

There are people who spend thousands of dollars on Candy Crush. There will always be something more.

Also, I have to point out, if you had made that list a hundred years ago, electricity wouldn't have been on it. Luxuries have a way of becoming necessities.

If there wasn't a need to buy rent, food, transportation, electrity, and communication I wonder if Candy Crush would have micro transactions.

I would say yes, because the developers would find something equally inane to spend money on.

Perhaps a more relevant example: Look at the bottled water industry. Even if all our creature comforts are provided for free, someone will pay for a "premium" version.

UBI is an attempt to save capitalism from itself. That's why you see 1%ers like Elon musk advocate for it.

Capitalism has always needed protection from eating itself, market economies suck, but there are few better workable options. UBI is just the next logical extension of the welfare state.