Which software are you buying?SACD or LP

For those that have SACD, LP, and possibly top-notch CD playback, which format are you buying of any given recording? E.g., Would you buy the 45RMP LP set of kind of blue ($150) or the SACD ($30) or should I just stick with my CD. This question pertains to recordings that you own, older recordings that you don't own, and new music.

I love the sound of all three formats but am never sure which to buy. My thoughts are conflicted, LPs are getting rarer and SACDs will be available for a while. However, SACD MAY replace LP in my system in a couple of years if it sticks and then I'd have all this expensive vinyl that may or may not have grown in value. Then there is the whole issue of buying SACDs to justify owning an SACD player.