Renting a bag and buying one answer different questions, so "which is cheaper" is the wrong place to start. The better question is how you actually use bags, and the answer points clearly one way or the other.
The two ways
A rental subscription lends you bags and lets you swap them, but you never own anything. Buying means the bag is yours: you carry it as long as you like, and you can resell it later to get some money back. One is access, the other is ownership.
The way to compare them is cost per wear
Forget the sticker for a second and think per use. A bag you carry most days for years costs very little each time you pick it up, which is where buying wins. A bag you would carry a handful of times costs a small fortune per use to own, which is where renting or borrowing wins. A subscription, meanwhile, is a flat cost every month whether you swap bags constantly or let it sit, so it only pays off if you genuinely rotate.
When renting makes sense
Renting fits a few clear situations. You like chasing trends and want variety without committing. You need an occasion bag you will carry a few times and then never again. You want to try a style on your arm before you spend on it. Or you simply do not want the hassle of reselling later. In all of these, paying for access beats paying to own.
When buying makes sense
Buying wins when you will actually live with the bag. If you carry it often, the cost-per-wear drops fast. If you want a classic that holds its value, ownership lets you resell and recover much of what you paid, which renting never does. And if part of the point is simply to own the thing, no subscription scratches that itch. Buying smart on resale, rather than at full retail, tilts the math further in your favor.
The catches, both sides
Renting builds no equity: the money is spent, not parked in something you can sell. Selection and availability also vary by service, and a catalog can list a marquee bag that is rarely actually available, so the bag you want may not be the bag you can get this month. Buying has its own catches: trendy bags can lose value, there is real effort in reselling, and the upfront cost is higher. Neither is free of trade-offs.
So which
If you carry a bag daily and lean toward classics, buy, and buy well on resale. If you love variety or only need a bag now and then, renting can be the cheaper, lower-commitment path. That is our read, not a rule, since it turns on your own habits more than on any one bag.
A note on pricing
Subscription tiers, rental terms, and what is in stock change often, so check each service's current pricing and real availability before you commit. This is general information to help you compare, not financial advice.