"CriticalMass"
Those GPS receivers won't count for much in your IFR training, but, for
the
ADF, I'd dump it.

ADF approaches and transmitters are being decommissioned around the
country
wholesale, and replaced by GPS approaches which are more accurate than ADF
anyway.

That's a little contradictory isn't it? If you are going to fly GPS
approaches at small airports why wouldn't it count for much in your IFR
training?

I think I know where you are coming from but that position may be a bit of a
problem. Outside of learning to do ILSs, everything else is button pushing.
Rather than practice NDB approaches with an ADF, you do the overlay with a
GPS. Same with VOR overlays. The made for GPS approaches themselves are
pretty easy but there is still button pushing and it is not self-evident -
especialy on misses and units like.....

I noticed the price of a new Garmin 155XL IFR-certified GPS is now down to
just over $2,000

Or at least the 300XL which I'm familiar with.

I agree with totally with your recommendation - but get it before you train.