My nearly 4 year old is in LDC kindy for a number of reasons - I work outside of kindy hours so that's obviously the main point, but also it's the most convenient area and he's well and truly settled there so I wouldn't move him.
If I were at home and not looking at going back to work before he were at school I may have considered a standalone kindy.
I actually like that he goes to kindy when the school kids are on holidays. I work 3 days and he and his little brother get me to themselves every thursday and friday, so it's nice for my 2 eldest to have holidays where the attention is on them a little more (even though i still have to go to work).