Choice of Champagne

[crankedup]

I need to purchase six bottles of champagne (monthly) which I use as part of my little business. The drink must be agreeable but inexpensive, I charge my customers 25 pounds a bottle, it is drank as an after wedding service toast for the bride and groom to enjoy (one bottle per wedding) prior to their onward limo journey to their reception party.

Two champagnes have caught my attention, both readily available (important)and under my 25 pounds bottle budget.

DESROCHES CHAMPAGNE (on offer at 19 pounds)

LOUIS CHAUREY (half price offer at 16 pounds)

Over to the PH'ers for considered opinions please. (very expensive champagne I only purchase to special order for customers)

Edited by crankedup on Tuesday 16th September 17:27

[crankedup]

Thank you for input, some good advise and food for thought. I have to bear in mind that different couples have differing budgets, the 25 pounds I think is about right with the option of requests for a more expensive bottle being available.
As we know the after service toast is just that, with photographs of the couple toasting each other in the car and so on. I'm not overly bothered about a mark-up as such but its a valid point raised that I bear in mind.