I know you're after prices in the US, but I think listing prices for other countries could help people in those countries as well.
If choosing to go with the injections, other costs are incurred such as alcohol wipes, sharps containers, band-aids and spare needles in the event of a botched injection (initial site hit a vein, accidentally touched the needle somewhere other than the injection site).
Prices are in Australian Dollars/AUD unless otherwise mentioned.
Primoteston Depot x3 injections: $29.69 Private Script, six weeks worth. Purchased from a Pharmacy Warehouse.
Sharps container 1.4L: $9.49
Alcohol wipes x200 pieces: $6.99
Band aids x40 pieces: $4.49 Pricing varies between brand, type and size. I went for fabric "Elasoplast" band aids.
Not listed: Spare needles as I have yet to purchase any. Costs seem to vary anywhere between $5.00 and $20.00, for packs of 100 needles. I also didn't list syringes as Primoteston comes pre-filled in a syringe.
I don't know much about other methods of T application, however my doc suggested either Primoteston or Testogel. I personally went for the injections as I am horrible with remembering something that I need to apply twice a week, and I'd rather not risk accidentally contaminating someone else with T. Anyway, below is the cost for Testogel.
Testogel x30 sachets: $92.39 Private script, thirty days worth. Price obtained from a Pharmacy Warehouse.
I knew gel would be more expensive, but I didn't think it'd be triple the cost of injections.