The only reasons I have heard from people for not living in the north, is no surf and no international schools if you have kids. From other expats in the south that I have met (not through the forum), they seem to have a negative image of Lovina. I don't know why really. When we go to Kuta or anywhere in the south, I personally feel it is hotter with all of the concrete, pollution and traffic.
I would say anywhere in the south has more bars and places to eat out. I go out occasionally for dinner but mostly eat at home. There is only a couple of things I miss like Japanese sushi and an Indian curry. I have a guy bringing me freshly caught 2kg lobsters, for what I am sure is a fraction of the price you would pay anywhere else.
In Lovina you have the wet and dry season, with little or no rain for the whole dry season. Other than the fact you need to keep watering your garden, I like the dry season. You get used to the weather fairly quickly. If you don't like hot weather, then perhaps Bali is not the place you should be moving to!
Prices are going up quickly in Lovina. The area is popular with Europeans more than Ozzies. You can however still find some bargains. If your plan is to buy now and build 5 years later, I think you could do well buying in Lovina with the right property. Even if you want to sell the land 5 years later, I cannot imagine it going down. Also, I know many people who are living high in the hills in Lovina who have drilled bores to get water, so I can't see that necessarily being a problem.
You find many people in the hills around Lovina sharing electricity, so that can sometimes be a problem if you are looking to buy in a remote place. Since most local people have a couple of lights and a television set, this isn't a problem. But if you want an AC or pool, you will need to get your own meter.
Don't count on the airport. I really can't see it happening anytime now or in the distant future. Perhaps your grandkids will thank you one day!
There are quite a few Balipodders living in the north and always up for a lunch or dinner. If you want to meet up with some of us to get the lowdown of living here, just let us know when you will be in the area.
Sure there is no McDonalds or Starbucks here, but that is one reason why I love this place. I had a great cup of coffee at a coffee plantation at Munduk the other day with one of the best views. What more could you want.