Which mount are you referring to? If it's the c ring that bolts to the top of the front strut tower, that is not really a wear part. If it's damaged or excessively rusted, sure, replace it. Otherwise, if you are buying quick strut's, they essentially just bolt in. You shouldn't need to replace anything else.
as far as I am aware the only thing that this does not include is the c ring above the strut tower, that looks like this. These are not likely to be worn out unless damaged or heavily corroded. Are your struts leaking oil? are the boots worn? if it rides fine, why are you replacing them? If you're looking to save money, you would just buy the struts and reuse your spring and strut mount. The only reason to buy a fully assembled strut like this is to speed up your installation and avoid using a spring compressor.
as far as I am aware the only thing that this does not include is the c ring above the strut tower, that looks like this. These are not likely to be worn out unless damaged or heavily corroded. Are your struts leaking oil? are the boots worn? if it rides fine, why are you replacing them? If you're looking to save money, you would just buy the struts and reuse your spring and strut mount. The only reason to buy a fully assembled strut like this is to speed up your installation and avoid using a spring compressor.