Hi Matt
No, probably not.
Generally speaking, we prefer to price a boiler on its own, and price the various flue options separately.
Back in the day, 95% of boilers had a bog standard horizontal flue. These days, less than 70% have a straightforward horizontal flue. For customers wanting a vertical set up, forcing them to take the standard flue is actually a penalty if they don't use it.
The only reason that we used to package a flue with the Ideal independent is that they make us buy it that way in 2014. In our 2015 negotiations, we dug our heels in, and told them to feck off, and we won. So from our next list, the Ideal Independent will reduce in price, but you will be charged seperately for the flue.
If you are one of the 70% who want a standard flue, I think you will pay about £8 more for the combo. However if you are one of the 30% who don't you will save about £40.