Oh I do understand very well that you want to give away games that you find worth giving/playing. I also presume that, if the prices are truly the same all around the world as GOG claims, UK should be among the countries where they "feel" the lowest. I have never been in London and I only know about its history - not economy or social life. I am glad that you are feeling like you can afford to give all these things.
I also do understand the concept of high prices very well (we have around 25-30% inflation rate per year for food/transportation costs despite "official" numbers of total inflation rate being around 10-12%) . Another question is - whether they are covered with the salary. So I am glad, if you can manage well.
What I was saying was to simply point out there is a chance for you to put less stress on yourself with all the daily giveaways. But since you claim it is not a problem, I can only say that I am glad for you and thanks once again for all the gifts! (Still can not believe I actually won the first one I saw/entered only 30 hours after I registered here).
I also do agree that these giveaways are a form of social engineering - I mean look at me. I came to GOG, saw the prices here are considerably higher than on Steam (yes I DO want DRM-free games, the question is whether I can afford them). Than I won your giveaway, than I had a magnificent sudden gift from Dischord and I already feel more "tied" to this community. Is it good? I certainly think so. ;) In other words, your strategy certainly works.