Japan is different; enjoy whatever is there. Just breathe the clean air, taste the tap water, walk around the clean streets, notice the difference in the McD afternoon promo, etc.  Walk down into the Metro -- don't need to go anywhere, just look at the huge mall. Pop into free temple and shrine gardens, watch people in Yoyogi park. Window shop 2-3 days around Shinjuku Station. Look at the manhole covers in the sidewalks. Checkout my last post yesterday.

As you can see from others' comments. this kind of travel is not for everybody. Before the big spenders scare you off, I can say I've done both high and low travel, many trips,  Shinkansen all over, lived in Tokyo and Kansai for months, and stayed in fancy onsens, and I still say it is most enjoyable just walking and exploring.

(And don't worry, if Fukushima blows up, radiation will circulate all around the world anyway.)

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