User blog:2Clumsywolf/Should I wait for this item to become more rare?

I have two items: a red 2015 banner and a rare pink purse (unnobtainable)

I'm not too sure if I should trade the items for what they are worth now or wait for them to rise in rarity. Because for instance the 2012 banners are worth quite alot now that it's been a few years, should I wait? Thanks :3