?? ?? ???: ?? ??? ??? ?? ??? ???? ????? ?? ??? ?? ??? although selling price really should not be the only pinpointing element, it’s necessary to look at the pricing and affordability of various op??? ??. ??? ???? ??? ??? ?? ???? ?? ??? ????? ?? ????? ?????. ???? ????? ?? ??? ??. ??·??·??? ???? ???? ??. '?? ?? ???' ???? "????" /??=??? ??? ?