For those who want a fun ride and to not be held back by road's surface, these bikes are for you. Cyclocross and gravel bikes are made for off the beaten track - a bike for explorers. Go forth and conquer!
The best thing about these bikes are their ability to do pretty much everything. They make good road bikes as they're sporty, light and share a similar geometry, indeed it's quite common for folk to use them as their 'winter bike.' Larger tyres allow for more grip and comfort in the colder months and obviously when the road runs out, you can carry on going with no fear!