Example: cumulative cost over 5 and 10 years
To show how the math tends to play out, here is a simple example using cited ranges. Treat every number below as an example assumption, not a price from Water Quality of Las Vegas or anyone else.
- Rental assumption: $35 a month, the midpoint of Angi’s $20 to $50 monthly range, with service included. That adds up to $420 a year.
- Purchase assumption: $1,500 installed, in line with HomeAdvisor’s reported national average, plus $150 a year for service and repairs starting in year two. That service figure sits inside HomeAdvisor’s $100 to $300 annual maintenance-contract range.
- Financing assumption: The same $1,500 purchase financed over 60 months at an example 9.99% APR, which works out to about $32 a month and about $1,912 total, plus the same $150 yearly service from year two. Real rates depend on the lender and your credit.
- Salt assumption: Salt is left out of all three because most households buy it in every scenario. HomeAdvisor lists salt at about $5 to $10 per 40-pound bag.
Under these assumptions, renting and buying cost about the same by year five (about $2,100 each). By year ten, the rental reaches about $4,200, buying outright about $2,850 and financing about $3,262. Change the assumptions and the break-even point moves, so run your own numbers with real quotes.
Example cumulative cost: rent vs. buy vs. finance (USD)
Buy outright, 5 years
$2,100
Buy outright, 10 years
$2,850
Example assumptions only, not quotes: rent $35/month with service included (midpoint of Angi’s $20-$50 range); purchase $1,500 installed (HomeAdvisor national average) plus $150/year service from year 2 (within HomeAdvisor’s $100-$300 maintenance range); financing = $1,500 over 60 months at an example 9.99% APR (about $1,912 total) plus the same service. Salt excluded from all. Sources: angi.com, homeadvisor.com.