Dr. Telly Kamelia 
If you only need the buying answer: rental and used copies are clearly cheaper than the current paperback in this snapshot. That means the honest low-cost route is not the current new copy. The current paperback only becomes easier to justify if you want a clean book to keep for personal use after the class ends.
Current price comparison
| Format | Source | Price | Link |
|---|---|---|---|
| Paperback | Merybook | $61.74 | Check price |
| Rental (76 days) | CampusBooks | $19.15 | Check price |
| Used paperback | CampusBooks | $38.86 | Check price |
| New paperback | CampusBooks | $38.86 | Check price |
What this book actually teaches
Focus on Personal Finance is a practical finance text about budgeting, credit, saving, investing, and everyday financial decision-making. The book matters because its subject can remain useful long after the course is over. Readers often discover that personal-finance material is one of the few textbook areas that stays personally relevant.
That does give ownership a plausible case. But personal usefulness does not automatically mean the highest-priced format is the right buy. Here, the low-cost used and rental routes are strong enough that they have to be taken seriously.
What the pricing actually means
The honest cheapest path is rental, followed by used or alternate new print listings that are still below the current paperback. The current paperback only becomes the better decision if you specifically want a clean copy from this route and care more about condition or convenience than lowest price.
I would lean toward rental or used for the lowest-cost access. I would only lean toward the current new paperback if you want a keepable personal-finance book and are comfortable paying more for that cleaner ownership route.
