Well it doesn't even matter how much and what kinda of purses you have, Like you have makeup/cosmetic bags or just shoulder bags, these all could be sold out but in low price then new one and to buy a new MM you'd have to contribute more money in the earned. And one more thing keep in your mind, You'll sell the oldies in cheap prices and buy new one but when you'll need some of those that you're gonna sell out then you'd buy it again as new on full price so I'd suggest that if the MM is much important at the moment and you think you must have to purchase it but you don't have enough money to buy it then you should sell but if it's not so, then wait.