Would a short-term display model Galaxy S25 be okay?

I've been using my Galaxy S22 for over 4 years, and since the battery life has become weak, I'm debating whether to just replace the battery and keep using it, or switch to the S25.
In terms of speed, I don't find it particularly inconvenient.
The S25 is a short-term display model, and it comes with the same 2-year warranty. I am currently with SKT, but the deal is a number portability to KT with a 90,000 won plan for 6 months..
I'm torn..
Would a short-term display model be okay?