Is this a good price

Honestly why do keep asking these questions and starting new and pointless threads? Pay and bid what you think is the right price or in your price range, if I really want a card I don't need to ask ANYBODY or bother people by asking.
 
Just see the same questions asked every couple of days not to mention the countless amount of sale threads his posted, it's not a personal attack by any means but buy within your budget is my personal advice I'd give him.
 
My advice is to buy what you want, at the price you are comfortable with paying.

If your looking to flip cards for a profit you need to do your research (checked completed listings etc etc). This is a good way to build your own collection but there is risk.

Collecting is more fun if you collect for personal reasons and not profit.

For me, my ultimate NBA card from 2018 19 would probably be a Luka Optic rated rookie silver signature followed by the prizm vaiations.

Have fun collecting.