I'm very sorry to hear about what happened but I'm glad at least you are okay. Sony are coming out with new models and the 700 is discontinued. You might still be able to find it at certain border or sony style stores if they have left over inventory.
Here is the news release for the new readers.
https://www.mobileread.com/forums/showthread.php?t=52760
If you enjoy your 700 your best bet would be the 600. It's practically the 700. The key difference I think is that it comes with a built in dictionary but does NOT have a built in light. None of the models have the light so you might need to purchase a cover that comes with a light when and if it's released for these new units.
I hope you can get the 700 fixed under warranty. If it's not, search these forums. I believe someone has had the problem you're describing but I'm not sure if they were able to fix it.
So was Bob unhappy to find out that they can be so easily damaged? And boy you must have ran into that screen window pretty good. Absorbed in your book?
You're probably not interested in the 505 but in case you are considering it and have a Walmart in your area, you might get a great deal on one. However, as the post states, your mile may very as it seems like different walmarts list the 505 at difference prices.
https://www.mobileread.com/forums/showthread.php?t=53035