Check out Dropbox. I pay $9.99 per month for 1TB if storage. You can store quite a bit of photos.
It would be used just for new photo's, tired of too many XHD's on the desk. At this moment in time I am favoring IDrive, free is nice but none I have seen go into TB's.
My PC is almost always on and I have had a couple of crashes when we lost power. I had to do an image restore. What do you do for backup?