It's hard not just download and activate every plugin you have here, but I have to ask myself, how many plugins is too many? Especially the heavy lifters like your Google Maps plugin, it takes a long time to fetch data from their API.
I watched a video from back in 2007 with Matt and Barry. He made the remark that they (then) had over 150 plugins running.
What do you think? Is there a such thing as too many? Plugins are supposed to extend the core functionality, and if it's written well it shouldn't pose an issue, but I still wonder what everyone's thoughts are on this?