Both are good, but you already have one.....

So for the GAS part: choose the one that complements the current one......

But maybe, just maybe it would be wiser to get a Sinar mono rail, perhaps ?
The ultimate Lego box (thats how I call my Sinar P2) with lots of oportunities for goooood GAS........

Peter

Oh, in that case keep the wooden one, sell it now and in 15 years you will be buying one again.