I don't know if comparing the cost of buying two or three new exports to one HF rig is really a fair comparison, then when it turns to new exports vs a used HF rig you're not really proving anything. I have a couple real nice used 2970 DX's that I paid less than $250 each for, one with a sp1 tuned by Bobs CB and the other a like new N2. Both came with the boxes and all accessories..... Now do that 2-3 times and you could have bought ....
HF rigs may be better rigs when price isn't a factor but when discussing value for your money you really have to compare similar condition radios (ie: new vs new).