JohnBuckner, please don't trash the old 72 MHz receivers. Put them on an auction site where someone who still uses 72 MHz can buy them. And definitely don't trash any high-end 72 MHz computer radios (e.g. 9CAP). They are sought after.

But I agree, for a newbee just starting out, go straight to 2.4 GHz.

And to the OP, please get connected with a local club and find a mentor. Having an airplane is not nearly as important as finding a good instructor. The club may even loan you a trainer and radio to get you started.