I've enjoyed this thread immensely over the years -- bags made up with thought and also an eye for cost. Thought my bag 'evolution' over the years might be of interest to some. I'm a senior (almost 70) and took up golf five years ago or so. I list the first two sets for completeness' sake only -- they were the result of following others' advice.
First I should say that from the start my driver has been a TM r580. First 10.5*, currently 12*. I also have an r7, 10.5* but the tip is too soft and I haven't had it reshafted as I'm happy with the r580XD and 12*. Fairway woods TM r580 5w and 7w. Putter a Ping Anser.
(1) Adams A3OS (a mixture of hybrids and irons); the less said about these the better.
(2) TM r7Draw irons (an improvement on the Adams set but not much of an improvement)
(3) Ping Eye2s 3-PW; I added a BeCu SW and a new LW. Lovely clubs which I will never sell. I later found in used bins a 2-iron and a 1-iron at $10-20 each. Surprisingly they are not that hard to hit although I can't hit them consistently enough to use them.
(4) Ping Eye2+s: 2-SW; later added a used LW; the 2-iron is also easy to hit and I used it for a couple of seasons when I wanted a long, low flight. These are very good when fairways are dry and hard; the eye2s are much better when the fairways are soggy. I won't ever sell these either.
(5) Ping Zings: 3-SW. This is what I currently play. I've replaced the 3i and 4i with TM Rescue Mids 4 (22*) and 5 (25*). Someday when the prices come down I'd like to replace the hybrids with the TM Burner ones -- their shape is a bit more wood-like and they don't look so strange underfoot. The Zings are reputedly the ugliest golf club ever made, but they are also the straightest-hitting club ever made (and can also be worked somewhat although I usually only do that when forced to). The SW has a low loft (52*), so it is like a gap wedge and wonderful for shorter distance pitching, but it is also very good out of the sand. When the greens get dry, I also carry my eye2 SW (57.7*).
Also have a set of Zing2's, 3-SW, but haven't felt the need to use these yet as there is nothing wrong with the Zings.
None of these Ping sets cost over $200, and they are so much better than the Adams and TM irons that the difference is like night and day.
I like to think I'm set for the rest of my playing days, but ... last year hit a Mizuno MP-14 2-iron a few times and then a number of MX-200s that someone was hitting next to me at the driving range. They were lovely, lovely clubs. I'll never be good enough to play
the beautiful clubs Luke Donald used to play (MP-60s I think) or the MP-33s, but perhaps someday the MX-200s or something similar.