By Elisabeth Buchwald, CNN New York (CNN) — Emily Miller lucked out. Of the millions of fans — and bots — flooding Ticketmaster’s site in hopes of purchasing tickets to Taylor Swift’s Eras Tour, the 22-year-old managed to score $200 floor seats to see the mega pop star perform in Pittsburgh last summer. Now, Miller dreams of seeing Swift perform again when her tour returns to the US later this year. But despite entering 10 accounts to get a code…