We are budgeting infrastructure for the next three years

[soumitss]

Hello. We are budgeting infrastructure for the next three years and the address space line is the one I keep going back and forth on. Renting looks cheap on a monthly basis and terrible over thirty six months. Buying looks brutal upfront and then free. Our workload is a VPN product, so the space stays in use as long as the product exists, and reputation continuity matters to us a lot. Has anyone here run this math for a similar case and landed on a clear answer? Our finance team thinks in three year cycles, so anything beyond that horizon is hard for me to defend internally.

[soumitss]

For a product with a long horizon and reputation sensitivity, the math usually favors buying, and your case sounds like a textbook example. Rented space can be pulled at renewal, and losing a range you have spent two years building reputation on is a real operational hit, not a theoretical one. Run the payback: monthly rate times twelve times three, compared against purchase price, and most /24 scenarios cross over inside that window. When I priced IPv4 Addresses , both ways at IPv4.online, buying won for anything we planned to keep past two years. Lease the short lived stuff, own the core. Mixed approach is fine and very common.