>The roads leading into and out of the County are solid with traffic both ways M5.A30 A38 .the Exeter services carpark is full and overflowing ..
>So this is the knock on effect of people not going abroad..???
Ime, it was ever thus. I lived in North Petherton (between Taunton and Bridgwater) from '67 to '71, the A38 was single-carriageway through the village, every summer Saturday jammed in one direction in the morning, in the other in the afternoon. When they built the M5, it was just three lanes jammed in one direction in the morning, in the other in the afternoon ...
For several years in the naughties, we'd have a week in north Devon with swmbo's sister's family; they drove from London, we drove from Kent - I'd use the A272 to the A30 by Winchester, the A30 to about Crewkerne/Chard, up past Taunton then over the Brendons and Exmoor to north Devon. Not fast but no slower than sitting on the A303, M5 and A361 ... Last day, we'd get out of the accommodation in the morning but spend most of the day on a beach (small kids who enjoyed swimming, building sandcastles, etc.) or at an attraction - either'd be pretty-much empty on a Saturday. Didn't start back 'til the afternoon, never very stressful journeys.
>availability at non-gouging prices
Problem for a long, long time is accommodation in GB has always been expensive - pre-Covid, it was always cheaper to fly to Spain, Greece, etc. This year, one of the problems has been that much accommodation is on internet sites like AirBnB, Booking.com, etc., they have an algorithm that looks at prices in an area then suggests a price for yours, will advertise it if you let it; as long as people are paying the prices, the algorithm keeps ratcheting 'em up. We took our holiday home off that because the suggested price was becoming ridiculous - we know some visitors are already feeling ripped-off, we don't need to rip 'em off, we'd sooner have repeat business when people have a greater choice but remember we didn't rip 'em off.