This really depends on the shop and the geographic area. Around here we pay north of $100 for ours with a 6-month warranty. Then, again, it's a trusted indy shop, not a brand name franchise.
Yeah, when it was all stock, I took it to Firestone and paid for their lifetime alignment Then did the front leveling kit and took it back to them, "they told me they weren't sure if they could do it, but they would try".
So after I put the Kings on, I took it to a shop that's been around for decades and they only have a few locations around locally, but a company I used to work for took all their vehicles to get tires and aligned there so I knew they did good work.
Funny enough, I told the guys I was literally heading straight to Arizona after that and wanted the tires rebalance and that was the part they were worried about, it's my 33s would fit in their balancing machine, but they knock that out too. The dude gave me the keys back and said you should be able to do 80 all day long nice and smooth. Lol