Similar to Gary's suggestion, if you are a Store subscriber, you can download a .csv file of recent items sold and the e-mail address of the buyer is one of the columns of information (along with the expected item number, title, mailing address, etc). Since I use Excel spreadsheets for my record-keeping anyway, I take that downloaded file, dump it in another spreadsheet that I made to move the info around to fit the format of my sales record spreadsheet, and copy/paste it into my records.
If they stop including the e-mail address THERE, then I'll be screaming too.
And FWIW, as of this afternoon, all of my Item Sold notification e-mails still include the buyer's e-mail address. I don't know if it's because I have a Store subscription, or for some other reason, but they haven't "improved"
everyone's notification e-mails yet
