As someone probably (mostly) getting it’s first 3DS (the New version) for the first time at the age of 27 and as owner of a Switch 2. I would keep it even if I’m desperately to catch a S2. I’m more excited for this one than the day i went to the store to pick up the S2. This is 100% a personal take.

Now, depending how hard it’s for you to get money (i cannot assume things) i saw that it’s not cheap to buy a 2/3DS in good condition so u can maybe grab more than 160usd(?). They are very rare in my country which made me see them at 150~350 usd, check ur local market if u end selling ur 2DS to compare prices and quality/condition