I wouldn't hope for much with godaddy. They are a registrar that decided to do hosting on the side.I completely understand the dollars and cents thing and I think I speak for all of us when I say I am appreciative of the service you have provided for free.
However, it is inevitable that the board will grow, and it certainly won't get faster with increased membership.
There will have to be some sort of revenue generated to support adequate hosting of the website. You simply cannot run a large site on an $8 hosting plan (fictional number).
Someplace like urljet.com (or any one of 100 other providers whose primary purpose is hosting, not registering domains) is, IMHO, where we should be looking to end up.
I wouldn't mind banners to accomplish the task. I am on another site where you can donate through the vB user control panel and it adds "supporting member" below your avatar. The donations of the users keep the board going.