if they are 70 still, they typically dont sell for too much. the only reason why mine was so costly was because when i bought it it had t3 + spectral + crimson death + riding turtle, old naxx weapons and tons of unobtainables. there used to be a couple other 70 r1s, that were bought and leveled almost immediately. they are worth alot more at current level + gear than old school.
plus i have a considerable amount of money so spending money on having fun isnt really anything new to me.