The easiest way is to ask the celebrant to make an anouncement before the ceremony requesting what you would like. This is usually the time they tell guests politely not to take photos during the ceremony.
As a photographer I strive to capture your personalities and all those special moments on the day.
Owning an album is really personal choice. At the end of the day it is nice to have a gorgeous hand crafted record of your day in print. Over time an album will increase in sentimental value and can be handed down through generations. It is a record of a significant event in your life. Some argue albums are never looked at but I can tell you over time you will laugh and treasure those special moments. So I give my clients the option.