Originally posted by Vitesse2
Because with modern GP distances it would only be about 20 laps so the punters who actually paid for grandstand seats would only see the cars 20 times- that's why they cut down Hockenheim to a tiny little Tilkedrome.
At the time, the reason given was that the Hockenheimring owners were getting sick of having to carry out maintenance, safety work and resurfacing on large, and largely pointless, sections of track, and instead decided to expand the short stadium course to GP-length, and sod the constant, expensive maintenance of the forest section. IIRC there was little overt mention of increasing the number of laps. Otherwise, all the Tilkedromes would have a mile cut out of them.
Really, they should forego racing in mainland France, and hold the race at Martinique instead. Everyone could enjoy that.