VAS, although comparatively costlier to install, is more economical in operation. To keep short routes economical, airlines preferred using second hand aircraft than costlier new aircraft. The disadvantages include a slower, larger, and costlier machine to operate. The only pitfall is cost, as insulated wire is often costlier than its bare counterpart. Invasions of enemy territory occurred over broader fronts which made wars costlier and more decisive. Costlier switching BECs diminish heating on the platform. Spectacles involving animals, "venationes", survived until the sixth century, but became costlier and rarer. Shopping goods are costlier than convenience goods and are durable in nature. Financing is generally costlier than for a primary residence. Experienced crew usually got stronger and costlier. In 1991, "Newsweek" magazine called the Vega costlier and more troublesome than its rivals. The larger the impediments to trade in the new relationship, the costlier it will be. Almost immediately after the blaze, a bigger and costlier third church was built. The U.N. victory was costlier than they had expected. Costlier higher-level auditing was only provided by Hubbard's central organization.