the budget slider only acts as a max. i think it may be useful to pull it in on the left so it can filter out the cheaper flights (especially if the limit to show is 100).
example - i am looking to fly from LPA to Europe and the majority of the flights listed are to the other Canarian Islands. Having a filter of say €50 min would take out most of the canary island flights and start to show some from €50 up that go to mainland europe.
love the site though! Sam