I use the classic flap a lot but the reason I was considering selling is that I bought a Jumbo in Black GHW and I cant justify having 2 black classic flaps. The one I thought of selling is black medium with silver HW. My husband hates the idea of me selling the CF though, because I once told him i would pass it to my daughter (who is now 5 yrs old!)If you don't truly use and want the Chanel I agree you should sell it to finance for something you love. If there's a chance to might regret, hold on the cf until you get the birkin. If you're happy with the purchase you can consider consigning your cf.
It sounds to me like everything fell into place for this beauty to be yours! It is indeed stunning! As long as it being pre-owned works for you, I think you should go for it!
What do you think of the condition of this bag? It honestly does not look bad at all in person.. but I dont know how crisp a new one looks...I'd go for it!