I don't know how one could advise another what to collect. The nature of collecting requires an interest, passion, and dedication that results in an on going education. Read, learn, and watch. Buy what you like when you can find it at a price for you. It can be done on a low budget. There is no magic number you must buy instantly or yearly or whatever. Watch and learn and seize opportunities, some will be better than others but there is no reason to "shoot low" due to budget. Just look that much harder. That's most of the fun
