Can you explain the problem a bit more so I can think if there might be a solution in the future. Is the problem about finding the gallery you want to edit in a long list? Or is it about the galleries index page? Or something else?
Yeah - I have a growing list of galleries, and it's beginning to look unwieldy. The new sort feature will help.
I use SVManager to manage and display images in a local sports club website. I will typically plan to add up to 20 new galleries per year. The list of galleries will get longer and longer.
I will adapt a gallery naming convention - e.g. 2009 National event1, etc. This will help.
But a really great feature would be to have subdirectories, for example all 2008 images, then 2009, and so on.