there are a couple questions that need to be answered...
Where is your diving going to be? If you are going to mostly travel (like the Caribbean), yoke is the norm..
What size (diameter) tanks do you intend to dive most of the time with? Larger diameter tanks will sit farther off your back, POSSIBLY minimizing issues that a DIN-to-yoke adapter causes by putting the stage closer to your head.
Are you diving a BP/W with a STA? The STA may also move the tank further off your back, minimizing the impact of a DIN-to-yoke adapter putting the stage closer to your head.
For constant use, I would NOT dive a DIN with a DIN-to-yoke adapter. Once in a great while.... perhaps...
YMMV....
that price difference sucks.....