Groomsmen are generally expected to rent at their own expense their tux, shoes, etc. Most rentals end up being anywhere from $120.00 to $150.00, and more for the finer materials. Another option is to buy a tux, but few people really have need of a tux more than a few times in their life, so that option is not a good financial choice.
A new trend that makes a lot of sense these days is for the groom and groomsmen to buy a new suit. The great thing about this option is that the groom and groomsmen will get plenty of use out of a nice suit later, and if you’re out $150.00 or so already, why not apply that money towards a purchase. Some guys feel a little awkward wearing a tux that they don’t know where it’s been and if your wedding is out of town, there is no rush to return that rental.
It’s not for every wedding, but it might be something to consider.