As posted above it seems like many collectors go through the same cycle of collecting.
In my experience, I feel the same way Basebal21 does.
Keep a few higher end sets going and a couple that cost less to put together.
One thing to consider, modern sets are less expensive to put together in high grade. Classic sets even the common coins can be very expensive.
When family members get to see my collection, the sets they like the most are
7070 Type set
Dollar date set
Modern commemorative dollar set.
Of course these are my favorites also, my suggestion would be to start one or two of these.
For less expensive sets I would do.
Jefferson nickels with or with out proofs.
Mine is with proofs it is a great looking set.
It can be done for less than $400, with all Bu or proof coins.

Also a nice looking set is the
Roosevelt dime w/proofs
This set is again really nice looking in high grade.

Of course you can never go wrong doing a nice Ike set.

Remember on modern sets, go for the higher grades, MS-63/65
The dollar date set is one where you can get nice grade classic coins at fair prices, if you shop around.
Here is mine, of course I have upgraded many since I posted it.
https://goccf.com/t/80643&whichpage=3When I upgrade I put my extra's in a Dansco stock book

Some suggest to only buy Key's, semi key's and better grade coins. Which is also a good idea, if you are happy with not having sets.
Any collection I feel you will like better if it is organized and has a good presentation.
I also like Lighthouse coin cases. I have one for my Silver
ASE's, Proof, burnished and bullion. Another I have for my commemorative dollars, and a third for my better slabbed coins.
Good luck on what ever you decide



