Yeah, I always do that after updating an OS as I don't mind starting from scratch. I also tried reflashing the stock image since they got posted but for whatever reason, it crashes (something about a signed file not verified) though sideloading the OTA update worked fine.
Interestingly this morning the touch screen was completely unresponsive but a hard reset seemed to fix that. So it seems it need to go back to Best Buy. Mind you now I'm wondering whether it is worth it keeping both a Nexus 5 and 7 when the 7 doesn't actually do anything the 5 can't (and one could argue the 5 does more since you have data wherever and some apps can't run on a tablet). Except of course for the larger screen... Decisions, decisions...