Costs vary quite a bit from what I've seen in my area. My old clinic was just over $200/month for the Testosterone, AI, and any/all labwork. HCG was an extra charge.
My current clinic is $145/month and like above, covers Testosterone (*regardless of dose), AI's, labwork, and all supplies that they mail to me (needles, syringes, alcohol pads, and medication) . HCG would be extra, and the monthly cost would go up if you choose to do a gel or enclomiphene treatment instead of injections. *I say regardless of dose because I'm on a high weekly dose and cost doesn't scale based on that. Both my current and last clinic don't take insurance. To me this is cheap and I'd happily pay a lot more were prices to go up as my doctor is fantastic and progressive, and I've never felt better.
Looking around at other clinics I've seen pricing all the way up to $300 and even $400/month which is a bit ridiculous especially considering it would appear they're more stringent as far as what they offer and flexibility around personal protocols, etc.