Dilemma: To book, or not to book, now?

for my upcoming Bali trip. Had already bought the KL-Bali return tickets ages ago, so long ago that i almost forgot i'll be having one (vacation), end of next month; at 300 bucks (relatively cheap).

Now 276.98bucks for this? It might go lower, or it might not at all.
*sigh* ~ juz realized that my roadtax had expired too (nearly 2 months overdue) ~ going to be another *tight* month ...