Buying a floor length dress for a single evening is the purchase that most obviously does not deserve full price, and it is the purchase people most often make at full price. Secondhand fixes the arithmetic rather than the wardrobe problem. On this edit the maxi dresses run from twenty five dollars to a hundred and fifty, which is roughly the range a single alteration would cost you on a new one. The catch is that a maxi has more ways to go wrong than a shorter dress, and most of them come down to length. A floor length dress is cut for a specific height with a specific shoe, and if you are shorter than the sample it drags, while if you are taller it sits at an odd point on the ankle and reads as a mistake. Length is also the one measurement almost every resale listing omits. So the first question to ask a seller is not about the size. It is how long the dress is from the shoulder seam to the hem.

Check the hem first, because a maxi collects everything from the floor and the hem is where a worn dress confesses. Look for grey along the back edge, pulled threads and any repair. Then check the closure, since a long dress carries weight and the zip is the part that fails. A separated zip at the waist on a heavy beaded gown is not a small fix. Then think about the shoe, and be realistic: if the dress needs a four inch heel to clear the floor and you will not wear one, you are buying a hemming job as well as a dress. Hemming a lined or beaded maxi costs real money, often more than these dresses do, so factor it in rather than assuming. For a single event, the pieces in the lower half of this range are the sensible choice, and for something you will wear repeatedly the satin and knit maxis at the top end hold up far better than their price suggests. Both grids here are genuinely wearable stock rather than damaged inventory, which is the difference between a resale platform and a clearance bin.

Yes, a secondhand maxi is worth it for one event, on one condition: that you have checked the length and are honest about the shoe. Every unworn floor length dress we have seen in a wardrobe failed on one of those two things and not on the size. We would spend more on a satin or a knit than on anything heavily beaded, because beading sheds and a shedding gown looks worse in person than in any photograph. And we would not buy a gown for an event more than a couple of months away, because taste moves and resale stock does not wait. If you take one thing away, make it this: ask for the shoulder to hem measurement before you buy, and if the seller cannot give it, move on to the next dress rather than guessing.