I really don't care about any tracking updates, who cares!...real simple...as long as I get the order within 3-4 weeks I'm happy......
I'm not complaining about price, or the exact time it takes to get an order. If I wanted it today, the B&M 5 minutes down the road would supply me all the batteries I want for $12-$14 a piece (Samsung). My complain is that USPS is now going through major changes and are now advertising increased scanning & better tracking, yet they are failing to deliver in some areas.
SingPost may only update once, but I expect USPS to update more often as they normally do. I send quite a few packages through USPS every month; some of them are updated frequently, others not so much. It boils down to if I'm paying more for a package to be tracked, regardless of the cost, I expect updates on it, period. I want to know where the order is and I want to know the expected arrival and/or delivery date.
If I went to my customers and said okay, it'll be $16 to ship and you'll get it when you get it, you may get updates or you may not, they most likely wouldn't order from me more than once. Unless it's some small order that fits into cheap-o First Class where tracking doesn't come standard, tracking and updates are pretty much expected.
Some may disagree, but I'm looking at it from both a business POV and a customer POV.