No. Definitely not.
We just lengthened our winter minimum stay from 3 to 5 nights. It helps weed out the price pirates. In summer, we're 7 days minimum. This makes us more visible to family holidaymakers, which is who we went to attract, rather than weekend party groups.
We're also raising our prices, particularly in the off season, in an attempt to attract a better quality of guest, something that's seriously declined in the past few years.