If you don’t mind holidaying with friends or family then you could upgrade your accommodation and actually save yourself money. Some luxury accommodation such as private villas or lodges can accommodate more than one family and usually the price is based on the villa / lodge rather than on a per person basis.
You can often get a beautiful holiday home in the UK for less than £1000 for a week. This can be quite a substantial amount for a couple or family with young children, but split the cost two or three ways and very quickly it becomes affordable.
This type of holiday is not for everyone as you may be spending a lot of time with the friends and family you went away with leaving you very little time to spend on your own as a couple, but many people take advantage of this and choose to babysit for each other to allow everyone their own time.