Assuming eBay masks a particular user's ID the same way across multiple auctions, then yes, it seems like a few people have purchased multiple covers:
artist - masked id - rating - ending price -
McKone - 8***8 - 1081 - $480.00
Brereton - 8***8 - 1081 - $510.00
total - $990.00
Purcell - a***g - 3097 - $1,225.00
Robertson - a***g - 3097 - $709.00
Beatty - a***g - 3097 - $404.00
Moreno - a***g - 3097 - $404.00
Albuquerque - a***g - 3097 - $688.00
total - $3,430.00
Portacio - v***a - 529 - $1,350.00
Bates - v***a - 529 - $621.96
Staples - v***a - 529 - $920.02
Ottley - v***a - 529 - $1,550.00
Valentino - v***a - 529 - $1,043.93
Rivera - v***a - 529 - $1,231.00
total - $6,716.91
Others -
Wilson y***y 237 $1,043.92
Lashley 4***a 2446 $910.00
Shah a***l 377 $405.00
Raney e***f 253 $611.00
Hembeck i***e 310 $389.00
McManus l***i 1314 $780.00
Kurth l***l 103 $585.00
Migliari m***c 34 $649.00
Allen s***e 1086 $410.00