Replacing wheels or not?

[pll]

Here's my dilemma of the week... Should I replace the stock wheels in my bike or not? The situation is as follows:

• I am planning on buying a new bike within the next year (horizon extended from next 6 months because finding a bike I like is harder than I thought).
• Currently ride a Felt F85 from 2003 (cost when bought: ~ $500). General problems with it: the geometry is too aggressive for me and it the road chatter kills my hands (all aluminum).
• Last Sunday I blew the third spoke in the rear wheel (two this season, one last season). It has become harder to true -- the tech at the bike shop that fixed this last spoke said that the tension was 'funky all over'.
• To add insut to injury, it seems I have worn bearings in the bottom bracket.

I will be doing the Hilly Hundred this weekend. I know I need to fix the bottom bracket issue. Estimated price tag, parts and labor: ~ $50.

My big question is whether to replace the wheels or not. Tough finding a rear wheel only on short notice (or without shipping adding too much to the cost). I have located a set of Mavic Aksium wheelset for $250. To replace or not? It would buy me extra time to search for the new bike, and also some peace of mind for my Hilly Hundred ride. Am I crazy?