I'm just going to negate this without calculating anything. You can earn a lot (more) cash if you spend the same time doing an actual job!
You don't need to have some special skills. Jobs that include something simple as a shovel or lawn mower will earn you more than faucets (as a free bonus they burn calories too!).
Yes. Something about free money makes us lose focus on what's actually going on. We all want a get rich quick scheme but they are usually too good to be true. When you do the calculations and convert to USD you will see how little you are actually making with faucets. But still we do it - probably has something to do with human psychology and maybe related to gambling.
Some people hope, that one day satoshi would be worth a buck - so if it's that easy to get some now, why not?

Holding and investing (or gambling

) your satoshis are the only reasonable way to use faucets - trying to cash out that pennies is definitely not worth effort.