Is there any way to get into tubes for super cheap

I have now been bitten by the bug. I will slowly build a system for music and theater, but have been hearing all kinds of praise for the tube world.
To be honest I have never in my life heard a tube system and until recently thought that onkyo and carver were the best in audio.
What is a good way to get started with a tube system?
What pieces are needed to really be able to make a good judgement?
I have no TT and usually listen to cds, Is there any hope for me?
I think I would like to do this pretty much all vintage, for me that is 10 years or older.
I don't think that cheap can be overstated in this case.