Should buying a van with Gaslow seal it?

hi
Still looking, but have seen two identical vans. Same make, model, year and conditions.
One is fitted with Gaslow and the other not.
My question to those in the know is should the one fitted with Gaslow be the sale clincher?
There's a difference in asking price but nothing too much in that negotiating may sort.
Do uou have Gaslow or similar and what's your thoughts?
(I've looked through past threads on here and most are about thinking of having it installed)
Thanks!

(We're narrowing it down!)

 

If they are exactly the same, defo go for gaslow one, not if your talking hundreds though as you can put one in quite easy for £200 ish

 

it only matters to a difference of about £200 on the price really

other than that, a van with gaslow and other "toys" fitted may have been used more for extended touring, so more wear and tear

 

Snap

 

Great - thanks for this