In majoritarian systems, campaign spending is generally found to be more effective for challengers than for incumbents. This article seeks to understand how the personal campaign spending of a candidate impacts preference votes in a semi-open List PR system. We analyse the effect of office in general, postulating that the size of the effect varies with the prominence of the office. On the basis of the pooled data on six different elections in the Flemish region of Belgium, we show that personal spending has an effect on the number and the relative share of preference votes, except for ministers and (to a lesser extent) mayors of local communalities. Irrespective of the office, personal spending has no effect on the odds of actually obtaining a seat.