Were these dragons worth 300 (pink/blue) and 599 (Yellow/White)?

So I just bought these dragons today as I've been doing a whole bunch of window shopping (I'm now broke 😭) And I really wanted to know if these were worth it? Ik I asked for my last dragon but I wanna be sure with these dragons as well. I feel like I got a HUGE bargon for the Large white and yellow dragon but I'm not sure.

Oh also another important question is should I grow these guys up or would it be more worth it to try and trd or sale them? Especially as I have like no sapphires now and it's so hard letting them build up even as a member because I impulsively spend them all 🥲👍