Are standing desk converters actually worth it or just a gimmick?

I've got one on my desk at home and honestly it does make a difference - my back doesn't feel as shot by the end of the day when I switch between sitting and standing. The thing is, they're not a magic fix; you still need to actually use them and not just leave them in one position all the time. If you're someone who sits for hours without moving anyway, yeah it's kind of pointless, but if you're willing to shift positions every hour or so it's genuinely worth the investment.