I was in the area, as you do, and as I had a little cash left on my sampling card I decided to pop into The Sampler in South Kensington.
I found I had just over £5.50 left so had to choose carefully.
Next, a Rioja but a special one. The Sampler is a great place for aged Rioja lovers as they always have some old bottles from the 80s and before. Today I tried a 1983 Monte Real Crianza (!) which was beautiful, cedary, baked fruit and silky smooth. A sample from 1973 for £2.10? A total bargain!
£5 very well spent
(edited to fix correct vintage for the Rioja – it was 1973, not 1983)