It depends on your goals and limitations, really.
For example, the little money I make selling cards goes directly into my purchases for cards. When it came to getting another New Year Present - a card that was roughly $800 by recent sales, I told myself I could not spend my own money on that as it would take away from my savings. So over the summer I started selling little odds & ends. 5 buck cards, 10 buck cards, lot sales, etc. It took well over 6 months but I finally sold enough to purchase one.
I justified my spending of the card because I sold what I already had to get it and none of it came at the expense of my income. I make roughly 30k a year and I no longer have the privilege of being a collector who can purchase “high-end” items due to the price surge this past year. I had an upward limit of spending $100~$200 every 2 or 3 months and made one exception when I purchased one card for $300. It dug into my income a little bit, but I knew I would recover quickly if I didn’t purchase anything the month after.
As heart-wrenching it was, I had to give up all of my side collections this year. I got major fomo because I saw people who could afford more than me be either unaffected by the price surge or were thriving in it.
The best thing I could do to counter that feeling was to create my own limitations with my goals - I came up with a system of rules that I have stuck by, allowing for 2 exceptions per year in a totality of $200 for items outside of my direct collection. Allowing for some wiggle room helped counter that fomo feeling. As such, I’ve also dug more into the non-TCG as it is more affordable and I’m nearly complete with my main collection anyway. I highly recommend anyone who is having a hard time with the TCG prices to look up stuff from the non-TCG. There is a lot of gold and promise there to keep the collecting bug satiated.
I sometimes think that some of the people who are doing well or thriving this year lose sight of the collectors who struggle during this time. Sure, people should stop complaining that they can no longer afford it by restructuring their goals, but it doesn’t hurt anyone to have sympathy or empathy for people who struggle with this situation. Anyone would be upset if suddenly their goals and such had to dramatically change or stop all together - often times a lot of those people already have little to go on anyway so it feels even more distressing for some so it’s harder to make peace with that sense of loss or losing out.
I feel lucky that I can still play into this because I have the privilege of owning almost all of my major wants from the get-go. Others are not so lucky. Though I’m happy that other people still have the opportunity to explore their collection goals without financial worry - it’s something I believe every collector deserves even if reality doesn’t allow for it.
I apologize for the length of this reply. Your question put a lot of my own internal thoughts on this into perspective so I appreciated the question.
Re-adjust your goals, see what it is you really want, try to be as realistic as you believe you can be, allow for some wiggle room (within reason), and never put yourself at financial risk for your collection. And if the TCG isn’t doing it for you anymore, the non-TCG is still a wonderful place to explore.