Techniques 1200 g versus 1200 GR2 for small vinyl collection

Since you call them vinyls and own only 20, why fret? Either of those TTs will exceed your needs.

The company is called Technics, and it sounds to me like you'd be completely wasting your money buying a 1200G (I happen to have one of those) if you have 20 albums and mostly stream. Only you know whether you might regret it and wish you'd got the other, but that's how gear buying works - you can wonder about that with anything. 

I would go for a vintage direct drive Technics - considering the number of records you have.  They go for only 2-3 hundred dollars, and they should last. 

I've had my Technics 1200 for 15-20 years, and it's been more than enough as I also stream 95% of the time now days.  From time to time I think about upgrading, but then I think how often I use my current Technics - and it makes zero sense to spend thousands on something I use only a few times a year..

As a past and present owner of several vintage Technics TTs, I would advise the OP to buy a new unit or possibly a recent production SL1200 (without the "G"), if he or she can find one in demonstrably working condition.  The older units very often need service before you can even start to use them, especially any Technics you can find for "2-3 hundred dollars", and the aggravation associated with finding someone competent to do the work and then paying for the repairs is not worth the effort for such casual use. For 2-3 hundred dollars, buy a Fluance RT85 or something like that, but you want new with a warranty.

Sorry.... Voice to text errors