Well I'll go the other way and say I am very happy with doing the RR shock on my 98 BB
The BB shock doesn't have compression damping like the RR, the RR's preload adjustment is way easier than the BB's and the RR shock is remote reservoir
I bought the bike from the original owner with ~32 000km and by 40 000km the rear shock was fubar, had lost all damping and was killing my back

Also as I'm ~ 300lb's it was undersprung as well
Anyhow I got a low mileage 93 RR shock off eBay for $61 USD and $65 USD shipping, spent ~$165AUD on an upgraded Eibach spring and ~$120AUD on getting it rebuilt and a collar made up for the spring, all up ~$460AUD
A new Penske/Ohlins/Wilbers shock here in Aus is ~$1500AUD+ and even buying one from the US is around $900AUD

I could probably have gotten away with rebuilding it the 1st time as well and saved money
The shock was still on there when I spat the bike down the road about a month ago and had ~60 350km on it and was still doing fine

I had entertained the idea of maybe getting it rebuilt and some valving changes done but it wasn't a huge priority