Used to be a time I would shoot pix for winter holiday brochures for Mallorca.
For quite a few years the hotels and airlines have remained closed during winter. Not for want of travellers, but because they make so much money in summer that they can afford to stay closed all winter long, from about the end of October until April. My conclusion, rightly or wrongly, is that they charge so much money in summer that they can ignore the wannabe traveller in winter, and so somebody, somewhere, is being screwed all summer long.