Here are some hard # for your quiver Michael...Give 'em hell!
http://riaa.com/media/D1F4E3E8-D3E0-FCEE-BB55-FD8B35BC8785.pdf
Full length vinyl LPs continued their resurgence in 2014, growing 49% to $315 million. This marks the first year since 1987 that vinyl LPs were a double- digit percentage of the physical market. Vinyl LPs were 14% of the physical market, and 4.5% of the total market at estimated retail value.