Are there people who get an initial gear set and dive with it for years and years, or is it usually necessary to upgrade after a couple years?
@IndigoBunting,
In 1987 I purchased a new regulator (Scubapro Mk 10 1st stage + Balanced Adjustable 2nd stage + SPG + 150' depth gauge), my first, when I was a graduate student.
In 1988, I purchased a second new regulator (Scubapro Mk 10 + G250 + SPG + 150' depth gauge) when I was about to drive down to Ginnie Springs FL for cavern- and basic cave diving certifications. (The two regulators were used with a Y-valve on a single tank during those two certification courses.)
I purchased and installed 300 Br. DIN conversions for both first stages in 1988 (when I purchased my first scuba cylinders), and I purchased and installed "Plus" conversions in 1993 or so (to convert each "Mk 10" into a "Mk 10 Plus", when I started receiving "cave fills" in these PST HP cylinders).
In 1994 or so, I purchased a new Scubapro D400 2nd stage to use with one of my Mk 10's (because I made the mistake of breathing from a friend's D400 and became immediately smitten by its goodness).
I service my regulators, myself--except for my D400 and 2nd gen A.I.R. II (which I purchased new in 1994 or so, to replace my 1st gen A.I.R. II--which I had sold in order to afford my second regulator described above).
I still use all of these regulators when diving in temperate waters. And a couple of years ago, I gave my then-preteens their introduction to scuba, using these regulators, in a backyard pool.
So, yes, there are people who get an initial gear set and dive with it for years and years. I don't expect to ever replace these Scubapro regulators.
ETA: Also, I purchased my first fins (Scubapro Jet Fins) in 1986. I still dive these.
rx7diver