I just found this thread, and I'm glad to hear about the efforts underway to encourage hotel owners to offer charging. Coincidentally, this past weekend I stayed in a hotel outside of Philadelphia (Holiday Inn, Cherry Hill NJ). Due to the specifics of my trip I didn't need charging, but I emailed ahead of time and asked anyway. The manager offered a 110V outlet (better than nothing, especially overnight) for no fee. I ended up not being able to use it, but after the stay I thanked him for the offer and included the following in my note -- short and to the point:
"Thanks again for offering the power outlet for my stay. [...] For what it's worth, if you're interested in additional business from EV owners, you might consider listing your hotel on
plugshare.com and/or
recargo.com. I could be mistaken, but I believe listings are free. Very few hotels publicize the fact that they have the ability to charge an EV overnight, and most hotel web sites don't offer the ability to search for charging capability. As a new EV owner I can say it has become one of the criteria I'd like to search for when booking a hotel, and had my itinerary been different it could have become a requirement."
In hindsight maybe I should have added a sentence or two about the slightly more costly options of installing multiple outlets, 14-50s/J1772s, etc.