The wikipedia article on pricing covers several of the factors involved in pricing strategies and setting. Alternately, "pricing" can be a verb meaning to apply or determine a price", as in "I'm using the label gun to price these cans of tomatoes", or maybe "I'm pricing the items for the garage sale" (where "pricing" means "to decide on a price").
The preposition "OF" is used here to indicate that the price belongs to/is used in relation with prices of spare parts. Now, the definition of "FOR" as a preposition- For Used to indicate the use of something: Some examples of "for" as a preposition- This place is for exhibitions and shows. I baked a cake for your birthday.
"Prices of" vs "prices for" - English Language & Usage Stack Exchange
'Of' is probably the most used preposition here, but preference is context-dependent. 'A price on' connotes 'a price set/levied on' (probably not the actual words) and is more seller-orientated. 'The price for' is nuanced less towards the involvement of the seller, and more towards the product (or even buyer). The price for it / for me to get it.
"price on" and "price for" - English Language & Usage Stack Exchange
The Merriam Webster dictionary defines cheap as charging or obtainable at a low price a: a good cheap hotel cheap tickets b : purchasable below the going price or the real value so, strictly speaking, prices cannot be cheap since there is usually no price for a price; goods and services can be cheap or expensive but prices, as you say, can only be low or high. The only circumstance, strictly ...