What about the "it used to be a thinkpad" franken-laptop, painted in watermelon green stripes, with bits of the case sawn off and extra peripherals stuck on with duct tape.

Or the slightly easier "cyberdeck in a suitcase" system which might (for example) be a full up diagnostic workstation once opened and unpacked.

Lay something like that down and people pay attention. Sometimes they call the police, depending on the place. People get so tense in food courts.

as to clothes, at that point your audience should be feeling lucky you're wearing some, not picky about the details.

No, a laptop, no matter how expensive, won't cover your privates or keep you warm.

No, nor does having a huge member entitle you to strut naked. The question reeks of insecurity

How do you determine if some clothing is expensive or not?

Clothes that don't look expensive are often surprisingly expensive. Dont just price based on what it looks like.

Somehow, I think any (anti-)correlation between the two will be due to a common dependence on a third variable, rather than one causing the other.