I can't comment on the price because I'm in the UK.
If you're paying someone to do the job, it makes sense to replace both
because parts are cheap and labour is expensive. There's very little
extra labour involved in replacing the discs once the callipers have
been removed whereas, if you need to do it later, you'll pay for the
labour all over again.
It's different if you're doing it yourself. You can examine the discs
for scoring and check whether they've worn close to the minimum
permitted thickness and then take a view as to whether just to replace
the pads.
--
Cheers,
Roger
____________
Please reply to Newsgroup. Whilst email address is valid, it is seldom
checked.