It doesn't matter to me, but for people whose employers don't pay them for the time, it might make some difference. If you make $10/hour, that's like getting paid for a ten hour day. But if you make $20/hour, it's still a big cut to your wage. I had to do it last year and got $15/day. By the time I paid for lunch and gas to the courthouse that was 45min from my house, and then paid taxes on it at the end of the year, I essentially made $0. Possibly took a loss. At least parking was free, but if it wasn't, or I had to take public transport, for sure I'd have been deep in the negative.
You can't blame people for not wanting to do it at those rates. Especially knowing there's a chance they'll get sucked into a multi-day trial and multiple days of lost income. I think it needs to be a law that employers must pay for jury duty time, at your regular wage. (Fine if they want to require proof, just make the courts give out notes.) I also think they should do something about child care, because I know too many people (many of them single mothers) with jobs that go from like 7 - 3 so they can take their kids in and pick them up. Courts go until 5, so they struggle when things like jury duty get flung at them.