I'm having a small casual wedding with only about 40 guests. I originally thought about a two tier wedding cake but I hate to spend double on what I want just because it has tiers. We don't have the option of a smaller cake to show and sheet cake in the back of the house (it's outside in a pavilion no "back of house"). What are your thoughts on just having a sheet cake decorated pretty? It will cost me 60% less than the tiered cake and still be the same quality.