How did $2000 become $5000?
It seems to me it's too early to bring money worries into the discussion. If you don't think it's going to make any difference, then why bother even talking about it? I think part of the point of this thread is to try and show why some people have not yet heard a difference between SACD and CD. Nobody's trying to make you do anything. Go check it out! (It'd be nice if all of life's sweet things could be delivered to your door, but, really!) Unfortunately, you seem more interested in shooting down the idea of SACD because you fear your stereo is not up to it. I suppose it's possible it isn't. Is that what you want someone to tell you?
And, don't miss the subtle point that a decent player makes regular CD's sound much better as well. The truth is, the analogue outputs of most digital players suck eggs, and you are foregoing the full benefits of the money you spend on CD's until you have a good player. The music is being degraded with cheap IC grung. As for what it costs to get a good one, that is a problem I have not yet fully explored. I have settled for Denon mediocrity right now myself, since my good player broke and is unserviceable. But I seriously doubt you must spend $5000. Even on the Denon the difference between CD and SACD is quite evident, though it might leave a person wondering what all the fuss is about.
I don't know. I didn't.
The most cost effective upgrade in digital playback might actually be to get an outboard DAC. Of course, you will be only able to play redbook digital through it, because SACD is not licensed for digital output except in very limited circumstances. Obviously this is not the answer for SACD, but I say this to tweak the SACD industry, if they're listening. They've allowed their silk to be enclosed in a sow's ear in order to try and gain a broader market. It hasn't worked. They should recognize that what they need to be about is quality and license quality players and quality recording channels only.