Roof Material Question for flip

[Ben Francis]

Low slope roof on 1,200 sf starter home in working class neighborhood.

It seems like the proper option is a TPO roof with and estimated lifespan of 20 years.

It seem that the cheaper option is to replace the exsisting MSR roll roofing with the same again which has a 8 ish year lifespan.

The price difference is $1,800.

Do buyers know or care ? New roof is a new roof either way. Or would a roll roof be a large decrease in value?

It wouldn't be the only roll roof in the neighborhood. I'm using the same contractor either way.