For sample orders, you're looking at roughly $12-15 per mg depending on the strength—that 5mg pen runs about $75 or so, while the 60mg option scales down to around $9 per mg in mid-tier quantities like 20 units.
Mid-tier pricing kicks in around 50-100 units and drops to about $7-8 per mg, but the real savings hit at bulk levels of 500+ where our company can get it down to $4.50-$5.50 per mg, and that's for the exact same pharmaceutical-grade materail with >99% purity by HPLC.

Most buyers go with the 10mg or 15mg pens for standerd dosing, but we've had a lot of feedback that the 30mg option is actually easier to handle for longer studies. 2-8°C storage is critical, and the pens are light-sensitive, so keep that in mind. We usually have stock for 5-60mg, but confirm lead time for larger orders.

It's not great for acute studies where you need rapid dose changes—teh pen format pretty much locks you into fixed increments (usually 0.5mg clicks or so). One thing people don't always ask: the pens use a different buffer system than vials, so if you're reconstituting, the solubility behavior shifts slightly.
Anyway, the cost-effectiveness really comes form the dual-receptor design—you're basically getting GLP-1 and GIP coverage in one pen, which cuts your per-dose cost by about 30% compared to buying separate agonists.