秋葉原までの交通費がなんだかんだで1600円くらいかかるので、送料込みで1600円くらいのパーツをいつも買ってます(笑)
パーツが一箇所の店に全部なくて、通販する店舗が分かれる場合は買いに行ってます。
その時は「せっかくだから」でけっこう多めに買ったりしてますね(^^;)

It costs about ¥1600 for me to travel to Akihabara, so I always buy parts for about ¥1600, shipping included. :-)

If the parts aren't all available at one store, and the places that offer them by mail order are scattered about, I go and buy them. That's when I stock up on a lot, since I'm going to the trouble anyway. :-)