Define value for money. If the bike isn't right for you, it's a waste of money as you'll inevitably sell it on at a loss or not ride it, letting it fester in the shed. Been there, done that. Now I buy the bikes that I like, not those of the reviewers or forum members. They help to form a shortlist, but you could do that by going to a few local shops which stock the range of brands, they don't help decide what bike is right for you
For example, trek and specialized look like poor value for money at face value if you just look at the components, but they would argue that they put lots of money into the r&d of their frames. That might be true, they also have big marketing budgets and sponsor expensive pro teams but that's me being cynical!
Personally, I'd say that the best value for money bike is likely to be last year's or the years before being sold off at a discount. Manufacturers only change their actual frame and componentry every few years, so often it's only the colour of the frame that's different, depending on the fashion for that year.
If you go test ride, using the shops time and resources, try not to then just buy the bike cheaper somewhere online...try to negotiate a doscount or some free stuff from the LBS