My two cents on costs - I agree with making bigger batches (5 gallons) at a time, though I have never re-used yeast. Homebrewing does take some monetary outlay in the beginning, but over time, it can be cheaper than store-bought. I bought my carboy, tubing, bottles, etc. and use Costco juice (~$4 a gallon) to keep it cheap, and after five 5-gallon batches, it is cheaper than the store (and better, imho, plus a bit of pride factored in).
In the end, it is a bit of a labor of love
On Deck: Cider XV
Primary: Cider XIV (Apfelwein)
Bottled: Cider XIII
Previously Enjoyed: Cider I, II, III, IV, V, VI, VII, VIII, IX, X, XI, XII