That's true... unless you travel around the country every week, the other state's sightings would only be useful to know if they've appeared in a new store chain. And it's not like we get hundreds of posts in there each day. Just go to the sightings section, click on the "view next post" tab on any topic that has a new posts since you were last viewing it, and the one or two new posts in the last few days will come up.
If you are really keen to find a certain toy or toyline, visiting every day or two will only take about 2-5 minutes to bring up and view the new postings since you were last here.
Pretty quick and easy really, and easier for people who actually post the sightings, to not need to worry about doing it 2 or 3 times in different topics for the needs of a handful of visitors.
This site is set up to have the best balance between doing as much as possible by contributors for the benefit of visitors, without being too much of a chore to spoil their fun and not want to contribute.
We also need to encourage visitors to contribute, so that they aren't just using this site or asking others to do more, without doing more themselves in return.