I planning to travel around in Europe for about a month in August/September this year. I haven't sorted out an itinerary or a date for commencing travel yet. What I wanted to know is whether Interrail Pass prices are time-sensitive, i.e., do I get cheaper prices if I buy a pass well in advance as opposed to closer to my journey date? If not, then can I leave my date of travel commencing unspecified or give a 'dummy' date for now and perhaps change it later?
On a somewhat related note, is there any way to get discounts on Interrail Pass prices? I'm eligible for a 'Youth' pass - so even if say I have to put off buying a pass until later and prices go up, will be able to compensate for it by other means such as student discounts, ISIC membership or anything similar?