Instead just spend it on post natal support generally, as its really clear that culturally and socially, women in the UK en masse choose not to breastfeed.
But that isn't the case, is it?
Looking at the most recent stats (2010 Infant Feeding Survey):
"The prevalence of breastfeeding fell from 81 per cent at birth to 69 per cent at one week, and to 55 per cent at six weeks. At six months, just over a third of mothers (34 per cent) were still breastfeeding."
As for why the figures drop like that:
"The most common reasons for stopping breastfeeding in the first week were problems with the baby rejecting the breast or not latching on properly (27%), having painful breasts or nipples (22%) and feeling that they had ‘insufficient milk’ (22%)."
So these are women who chose to breastfeed, but ended up switching to formula because they were having problems with breastfeeding. Increased breastfeeding support would mean increased support for these women to achieve their own feeding goals.