Like me you find yourself prefering apps like Lucid Charts over Visio because of the abilities offered via the cloud. Sharing files for example. We all know you can share and access Google Doc's files much easier then with MS Office. But what about workflow documents? Sharing a Visio document has never been easy. You either have to have a full version of Visio installed on every users machine that needs to be able to edit it (and then good luck keeping all the updates in sync) or you export the visio file to a spreadsheet or PDF or something that can't be edited.
With cloud enabled apps like Lucid, you can share a workflow diagram with anyone, and give them access to edit it. You can embed it in a website easily.
So, if you find yourself working in the cloud because you find cloud based apps to be more effective for your work than fat client installs, you may just wind up deciding that a chromebook is right for you.
I'm using Lucid as an example here, but typically for me the top reasons for looking at cloud based apps are Sharing and Publishing abilities.