Best wording?

I'd just get rid of some unnecessary commas.

"However, for safety's sake certain items such as car seats really should be bought brand new so that you can be sure they're in good condition."

I understand getting rid of the comma after "sake", but isn't the phrase after "items" non-restrictive, meaning that removing the comma is viewed as an error?

certain items such as car seats

I have trouble seeing the above phrase as restrictive.I'm not sure the concept of restrictiveness even applies here.
Do you really see two different meanings with and without the commas?

CliveDo you really see two different meanings with and without the commas?

Here is my reasoning:

"Certain items should be bought brand new so that you can be sure they're in the best condition."

This has the same meaning as "Certain items, such as car seats, should be bought brand new so that you can be sure they're in the best condition."

Let me start from the premise that most native speakers would not see the lack of commas as an error. The question is 'why not?' Perhaps the phrase 'such as car seats' can be seen in your original context as simply adjectival in nature.

I'm afraid I'm not doing a good job of explaining this.

I understand where you're coming from. I realise that a lot of people would probably not mind the lack of commas, but I still feel that they should be there.

Here is an example from CMOS (section 6.27) that is similar to my original sentence:

"Some words, such as matutinal and onomatopoetic, are best avoided in everyday speech."

They then go on to show that the same se

Would you see it any differently if the wording were this?

Certain items like car seats should .. . .