Boofhead is correct in talking about V1go and V1stop. However, our performance tables (B737) seem to take some of what you are saying into account. The WET V1 correction, for instance, is LESS for a full length runway than for an intersection figure (2 kts full length, 5kts for an intersection 1100m into the runway).
The other intersting development is that it is possible to have a performance database on a laptop computer. This allows a higher RTOW due to being able to work out precise figures for the actual conditions of the aircraft on the day (the tables are generalised and have added anomolies in them). For instance, some performance pages say to REDUCE your RTOW for a HIGHER pressure above standard, which obviously doesn't make sense, but it is necessary because of the way the table is constructed.
I tend to calculate the performance for the intersection furthest into the runway, so on a very long runway like PARIS we know we can take any intersection up to 'Y8' etc. without having to recalculate the figures and so cause a delay, and we don't have to rush them under pressure. This obviously results in a more 'go minded' situation if we take the full length in the end.