Or find a cheap pub and go there 50 times and enjoy.
You can get leffe for £3.03 litre asda https://groceries.asda.com/product/view-all-world-beer/leffe-blond-abbey-beer/23367505
It is a heavy up front expense but I am loving mine. I get the 20% off for buying 4 kegs at once. With the £5 refund I get Leffe on draft for less than the price of a bottle from Asda. Use a small glass and it's always fresh and perfectly chilled. Only downside for me is 15 hour wait for a new keg to chill. P.S. for an extra £5 I recommend the Kwak !
that's more expensive than the Heineken Subs with a larger initial outlay as well, not for me.
You are obviously paying for the novelty of pouring your own pints