Is there any use to owning two upscalers?

I just got a Retrotink 4k Pro at a great price, but already have a 5X Pro. Besides being able to have two flat panels upscaling different consoles at the same time, is there any benefit or use to a second upscaler? Does the 5X do anything different or better than the 4K that may not be readily apparent? I usually keep all my electronics but this seems pretty pointless unless there's a use I'm overlooking.

I know it may sound silly or there may be an obvious answer. I just couldn't think of anything besides what I mentioned above and figured this would be the best sub yo ask on given it's the target market. If not I'll just give the 5X to my little brother.

Thanks in advance.