Cool thing for Tasker is if you download it from their website, you have a trial period.
Test it out during the trial and see if it does what you want, or if you can get a solution from the community for Tasker in time.
Considering that Locale (which is what I used when it was free) is now $10, and it mainly just does changes based off your location, and Tasker is $6 and you can set it to do changes based off of a massive number of different triggers, I would say it is worth it
However it has more worth for those who want to do more with their phone automatically. If it is just one thing you want done, it can be a harder sell.
Test it out during the trial and see if it does what you want, or if you can get a solution from the community for Tasker in time.
Considering that Locale (which is what I used when it was free) is now $10, and it mainly just does changes based off your location, and Tasker is $6 and you can set it to do changes based off of a massive number of different triggers, I would say it is worth it
However it has more worth for those who want to do more with their phone automatically. If it is just one thing you want done, it can be a harder sell.