wines and mineral waters are among few good things bulgaria is know for.
i dont know what selection lidl marketing guys has made but if you call me next time you see wine offerings for bulgarian week i may try to recommend you some from the list.
if you havent planed your summer vacation yet i have for you an preposition you may think about
http://www.starosel.com/en/
i dont have any relations to this hotel beside i've been their customer several times. i like their service and i'd gladly recommend it to anyone who's seeking quite vacation away from the crowd. prices are in local currency but rates are 1euro=1.95leva (1.94 if you sell 1.96 if you buy) fixed rate, 1GBP=2.477leva by today''s fixing - this one is floating.
if hotel doesnt offer free airport pickup i'll gladly be your driver (can take 3 adults with cases) and guide for plovdiv.
edit: bah their wine page is broken in english but you are quite good with google translate