When I started selling limited edition prints, I always picked different images to sell in the different sizes that I sell. Of course, I was always able to custom print images if someone wanted an image larger (or smaller) than the ones on my website.
However, now that I am doing more & more face to face events, I am always getting asked about my more popular prints in different sizes and again, I can always custom print something, but it's far better if I'm able to supply the print there & then. SO, in summary... I'm putting more prints onto my website in different sizes! I'm not neccessarily going to display all options when I am at events, as there would be too many prints to sort through, but I will try and have a few of the popular prints in both my smaller photo size & the standard size.
Obviously, once an image reaches the end of its print run in a particular size, it won't be available in that size again. Smaller prints will continue to be in prints runs of 100 & the standard size prints will be runs of 50 prints.
Hopefully this will make things easier for customers & for me!
Details of all print sizes/formats are in the FAQ section of this website.