Interested at all in trading her? I plan on using her in my deck since I have a lot of flying cards, so I'd be willing to offer a fair amount for her. As far as the clean cards I have for trade, I have Amymon, Glasya-Labolas, Glenn, Gremory, Empusa, Barbatos, and Succubus Priestess, as well as most SRs (most of them stacked). I'd also be willing to trade a level 3 grim reaper with 1550 maturity (10041 ATK/5659 DEF) and level 6 evasion. Anything interest you?
Well once you get a card it's added to your archive, so there's no real reason to hold onto it other than for trading purposes or sentimentality. I'll respect your decision if you decide not to trade it, though, so just let me know if you change your mind.