Generally speaking, dobs are indeed cheaper than other types of scope of the same aperture.
Will I set up next week? Firstly, it depends on the sky condition. If the sky is overcast, there is no point to set up a scope. Secondly, it depends on whether I am free that evening. If it is a clear moonless night, I may be observing at Sedili rather than at the Science Centre.
Last night was a busy but tiring evening for me, as there were many kids wanting to view through the 15" dob. Good to see an old friend David Lian there. Seeing was quite good and everyone had a good look at Saturn bright and sharp at 533x magnification. Encke Division was clearly visible but the public was not too keen to observe this; instead more people were keen to look for the moons of Saturn
