It was road connections back in the days when the motor industry was huge in Birmingham and mass produced cars were becomming more affordable to the masses. The A5 is still littered with very splendid 'road houses' where cars and coaches would pause. Rail connections existed, but it was the booming motor industry that made places like Tenby, Barmouth, Borth and Aberystwyth popular holiday destinations with Brummies. Previously, they had remained very posh retreats for the priviledged few (along with Welsh spar towns). They became too popular at peak holiday times. The A5 follows an old Roman route and has long straights followed by blind corners, or blind hills. With traffic jams from over congestion, accidents and notourious drink drive pile-ups after people paused too much at road houses, the resorts became a less attractive proposition to Southern Spain package deals. The weather was a factor also of course. As a kid I much preferred Barmouth and Borth. Often used to bunk off college and take a day trip when I should have been sitting, or studying for A levels also. Good memories.