Krell KBL or Krell KRC-3 or neither?

I am still a noob. Here is proof. Is $2800. too much to pay for a Philips DVD727? I know they are only $40. My real questions is:
Does the Krell KRC-3 have a better rep or what charateristics make this cheaper (new $2950.)than the KBL (new $4500.) have a higher used bluebook? Are these worth the $1470 (used) KRC-3 and $450.(current bid) for the KBL?
Is it true that tubes increase or are most suited to mid-range than SS?
Thanks for any input.
BTW...I know some ppl don't care for Klipsch, but my new RF-7s sound so awesome, and they have not yet been broke in. To anyone looking at speakers, (I know my opinion is just the 'flavor-of-the-day' and this is the wrong forum) for $1800. a pair, I am amazed and am finding myself with a big smile on my face wanting to say "these are the best speakers...no, the best sysyem I ever herd!" But, like I said, I am new and have not herd many, if any, good speaker/systems. Just had to SHOUT OUT my happiness.