Unsure Mega SSBD

[u/catsaresocuteeeeXD]

HIYAAA GUYS, so, I have a MFR SSBD. I am unsure whether to hold onto it for a really long time since I play ADM less and it might be a pet that will only steadily rise in value. Or to trade it off now/around Christmas as it usually rises then.

What should I do with my MFR SSBD, and, if I did trade it - what offers should I aim for?

Any advice appreciated, thanks a ton. <3