My mother, very involved. We moved very close to my mother a coupe of years ago (my husband's idea and suggestion) and we see my mum and dad everyday, often go on holidays etc together.
My in-laws have never been very involved. I used to live fairly close to my sister in law and they were there most days but rarely saw us, we eventually moved a way, there is a 10 plus hours between us now so we don't see each other often understandably. However, their ethos is you look after your daughters. So we don't have the closest relationship. We get on better with the distance.
It used to hurt me a lot, hence why we moved, it hurts him from time to time, he doesn't have much of a relationship with his siblings as they don't seem to want much to do with us and when we visit they often don't want to meet up, one sister kept forgetting our kids birthdays etc so we just decided to stop doing presents when she moved aboard.
In the grand scene of things; my kids are happy, they don't miss out on anything, they have a extremely involved grandmother in their doorstep, we see my in-laws once or twice a year, we tend to be the ones that call etc, although they do visit one a year and the kids love seeing them. I guess I just came to accept they see the world and family differently. There are times it hurts, we went away with them once and they invited one other daughter and family, there was a very much them and us thing. They bought stuff for themselves and their daughter and kept it away from us, paid for attractions etc for her and not for us. Once we were in a zoo and they went and found themselves a table but was no room for us so we had to go outside etc ... so there are things where I am just shocked at their behaviour towards us, but I am and have learnt to appreciate when they are involved.
Let's face it, you cannot change anyone else's behaviour, you can only change your own and your reactions. I wouldn't for example every go away with them and other family again because my kids notice that Granny likes the others more than them, but one on one they love their grandparents and things are lovely.