Nothing can get finished...

Lately I'm feeling kinda trapped by my collecting projects. I have started large sets that I want to build and while they're great for long-term goals, it doesn't give much gratification to fill one more hole in a sea of holes in a set. I'm currently pursuing the following:

Lincoln Cents [MS66-68RD](250+ coins)

Statehood Quarters [MS67-68] (~180 coins)

Presidential Business Strikes [MS65-66FD] (80 coins, 8 more years)

Presidential Proofs [MS69UC] (40 coins, 8 more years)

20th Century Type Set, non-proof, no gold (~40 coins)

See my problem? I've picked sets that'll be really cool, when they're finished, but it'll be a very long time before I get that satisfaction. This is part of the reason why finishing the Silver Eagles (27 coins) was so important to me, to finish something. It's why I've been pursuing the last coin I need for my 21st century type set (9 coins) and the last few coins for the Australian Lunar coins (12 or 13 coins depending).

I'm also looking into some smaller projects that aren't such a major investment of time, money, and energy. These include a 1967 SMS set (5 coins), and a 1986 proof set (5 coins) for my birthyear, something to let me feel like I'm actually getting somewhere with some of these sets.