does 32 bit make a difference over 24 bit?

I am looking to buy a new cd/dac. I have looked at the SimAudio 750 which is supposed to be 32 bit. I am trying to purchase something that will not be obsolete in the next few years. I have twin Pathos Classic 1 mkIIs running bridged(about 140 watts per channel) and Avalon Ascension speakers. I only play red cd's but will at some point get in to some kind of streaming. I would like to keep the price at somewhere between 6k and 7k (used. Will the higher bit rate make a difference in the future?
Thank you all