One thing to be said in favour of Real Ale, whether it is an English thing or just traditional, is that a flourishing market for Real Ale makes it easier to start a microbrewery in the UK. If you're producing Real Ale, you don't need filters and bright beer tanks, you don't need to flush all the pipe work with deaerated water or take other steps to keep dissolved oxygen in line. You can rely on the yeast in the beer to take care of the O2. In other words, you can produce quality beer with less capital investment and that's something quite apart from the fact that Real Ale just tastes so god damn good.