Always get a second, knowledgeable opinion when a tire place tries to sell you suspension parts.

If there isn't obvious uneven tire wear, and the steering wheel isn't cocked off center, etc. it doesn't need an alignment. If there's no play in the balljoints, tie rods, etc. they don't need to be replaced.   IME non greaseable joints last about 150k miles on average, and greasable ones last basically forever if you bother to grease them.  IMO this is just an upsell. 

I needed tires on my WRX some years back.  The guy tells me it needs a steering rack because it has a torn boot and there's a lot of grease all over everything, plus the PS reservoir is low.  So for Ss &Gs I ask how much.  He says, well the rack is $400 and installation is $300, and an alignment is $150, so total out the door $850.  I ask if the new rack is OEM or reman, he says reman is all that's available.  So I say, well, that sounds like a good deal, but here's the thing: the PS reservoir has been at the same level since I bought the car 12 years ago.  Subaru still makes new racks for this car because its the same rack they are still using on the current generation cars.  All the grease you are seeing is the result of a leaking valve cover gasket, very common on higher mileage and older Subarus.  Did you notice it was black, brown and there was no red anywhere to indicate an actual PS leak?  Also, there's nothing wrong with the steering, so why would I need a new rack for a torn boot?  Blank stare. 

This past year I finally replaced the boots, bushings, and inner and outer tie rods ends on the car that now has 217k miles on it.  I replaced the valve cover gaskets at 198k miles and cleaned everything and it now leaks nothing and the PS reservoir is still where it was when I bought the car, which was now 18 years ago.  Why do people feel like they have to lie to make money?  Or is it just inherent scumbaggery that they cheat people because they can?