This seems to me a slightly curious question. For sure, conservatories have been a fashion concept for a lot of people but nevertheless they are genuinely popular with probably the majority of those who have them. Due to the British climate being rather cold (you don't see anything like the number of these things where it is warmer), the greenhouse effect makes for a pleasant ambiance both in terms of glass surroundings and warmth on a day when it is sunny and therefore you actually see beyond the glass. Equally, a typically dreary day is not as threatening seen from a conservatory. That said, unless you have double glazing, good insulation, shading for truly warm days and heating for October-May, you will not be able to enjoy it in the cold period unless in a jumper and even full outdoor clothing. Condensation is something that the British fear greatly and often suffer from, while foreigners don't including those living in Britain. This is mainly due to enormous British reluctance to heat their space constantly. Heating is generally timed and in between temperatures plummet (making it an effort to bring them back up and more expensive also). The sight of people hugging a mug is uniquely British. Additionally, people in Britain open their windows to 'get some fresh air in' even on the coldest days. This is probably a carry over from the days of one coal smoke filled room with everyone crowded into it, and also TB precautions. Heat a properly built conservatory with the house when it is cold and it will be a true extension of the home with no condensation.