I have to agree with you. I did the "nasi" or rice dishes course and it was just so fascinating to make real traditional Malaysian dishes, and to learn about the history of the various dishes. Some of the recipes had never even been written down before and Rohani had to painstakingly recreate and rewrite the recipes with metric portions based on verbal interviews done over years with cooks in small local villages. For example, one of the dishes we made was the nasi dagang, which is translated as Traveller's Rice and we used a quite special species of red rice which is grown only in Kelantan.
As an experienced food specialist myself, I found Rohani a lovely unique person with a genuine passion for food and for preserving the old traditional recipes which are simply being wiped out by modern food processing factories. I was just so happy to be allowed to recreate some truly lovely fragrant dishes with her and it was such a wonderful experience to be able to do it at her quite stunning house.
I don't really exactly remember what I paid in total (less than 300 ringit for sure) as I had the taxi as well (organised by Rohani) but the experience was worth every penny and much more.
In short, my day at Rohani's house was by far the highlight of my stay in Malaysia. The experience of the rest of my short stay was somewhat variable - I saw pickpockets openly in action on the local transit trains, my own handbag got slashed at a night market and no taxi would use their meters despite me insisting on it. The local food was quite nice but full of monosodium glutamate and also often had too much sugar and salt. However, the Japanese buffet at Zinpangu at the Shangri-La was quite spectacular as was the dim sum at Xin in the Concorde. Some friends weirdly also took me to try tapas in Bukit Bintang Chankat and it was not too good, as the other (limited) Western cuisine I tried in town. The bar drinks are quite expensive, and the best drinks I had were the chilled fresh coconuts wrapped in cling film which you can find in Indian or Chinese restaurants.
I would return for sure but I would be much more careful about where I go and be more wary of the prevalent petty crime in the city. And definitely I would be back to see Rohani again as that would really be the main reason for going back to Kuala Lumpur. She had also promised to point out to me some of her favourite restaurants in town and I don't want to miss that!