It's pretty tough to break the P95 anyway.
My guess would be there are two ways to look at a P95 in your collection. If it's pristine and you want to play the long game, you could put it back and wait for it to appreciate (marginally) in price as parts MIGHT not be available for it forever and ever.
However, for what you paid for it, by the time you shoot the barrel out and wear out a couple sets of springs Ruger probably has half a warehouse of, if it's truly obsolete and irreparable you've more than got your $300-400 worth out of the old warhorse.
I too would just snap up a bunch of mags if you can find them at a good price. If you use them, great. If you need them, even better. If not, you should always have a buyer on the second hand market.
I think parts will be easy to come by for a good long while. The P95 was probably the most successful of the P-series.