Cheap pollyfiller (Benefit Porefessional) does it exist?

[Chumhum]

I've got large pores and find Benefit Porfessional works well at disguising them I wonder if there's a less expensive product that does the same thing?

Yep.

Lanacane Anti Chafe Gel. Makes an amazing primer!

The Maybelline Baby Skin one is really good too.

L'Oreal has one in a glass pot. It's very good.

Maybelline Baby Skin reminds me more of the Smashbox primers, but it's not bad.

Nyx Pore Filler.