I would probably go with stainless, just because I like it. If the rest of your appliances are as old as the dishwasher, you may not be PLANNING to replace them for another 5 years, but it may be required on an earlier schedule than you would like.
Refrigerator efficiency has come a long way in 15 years, too.
I would get what I liked. ONE appliance that is different than the rest, but is still sort of generic (I think Stainless can match any other generic colors, i.e, black/white, but probably not almond). The saying "black goes with everything" in clothes, I almost feel like goes with stainless and appliances.
For me, it would really only be a problem if you had multiple colors going on (stainless dishwasher, white stove, black refrigerator... or something like that).
That said, our dishwasher is completely stainless. Our stove is a stainless front with a black control panel and black glass on top, our refrigerator is stainless with black handles, and the microwave is black and stainless also.
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Interesting to me to see the different personal tastes. We had all white in our first house and I hated it. Talk about kids smudgy prints on everything. Ew. I hardly notice the smudges on our stainless.
We had a white sink in the rental we lived in while building this house. I had wanted a white ceramic sink until then. The amount of grossness you see in the bottom of a white sink daily sent me straight back to a stainless sink, too.