http://www.faqs.org/faqs/aviation/faq/section-8.html
What about logging cross-country time?
You *may* log as a cross-country flight any flight at which you leave
the immediate vicinity of the airport. From the point of view of
cross-country flight experience requirements any FAA rating or
certificate, you need to *land* at an airport other than the airport of
departure for the flight to be counted as a cross-country flight. You
don't even have to do a full-stop landing at the second airport -- a
touch-and-go (shudder) is fine. You do have to land -- an instrument
missed approach doesn't count, as far as the FAA is concerned.
However, it's also true that you are not *required* to log any flight
as cross-country. It's up to you.
The requirements for certain ratings make restrictions on which logged
cross-country flights may be counted towards a given rating. To make
your logbook simpler, you may wish to count as cross-country flight
time only those flights which are relevant to ratings which you are or
might be seeking. Note that the mileage requirement is the
_straight-line_ distance between two airports -- if you take a
circuitous route, that won't help. (The summary below applies to
airplanes only; rotorcraft, Gliders, etc. differ.)
for the Private Pilot certificate (see FAR 61.109(b)(2)):
Dual cross-country: no restrictions. Solo cross-country: more than
50nm from the point of departure.
for the Instrument rating (see FAR 61.65(e)(1)):
more than 50nm from the point of departure.
for the Commercial certificate (see FAR 61.129(b)(3)(ii):
more than 50nm from the point of departure.
for the ATP certificate (see FAR 61.155(b)(2)):
no restrictions.
So according to this, logging that flight of 1.5 hours as X/C PIC should be fine. Just feels weird I guess?