For a number of years all I rode on was tubulars. I never repaired any, but I rarely flatted. Now just as Bianchigirll said, changing a tire on the road is not bad because the residual glue on the rim, and the replacement tire is enough to get you to your destination. BTW, have you tried pumping those tubulars up ? They might not be punctured, only lost air because they haven't been used for awhile.

BTW, for gluing tubulars onto the rim 3M Fast Tack Trim Adhesive is great. Big tube, lasts forever, and you are ready to ride in 45 minutes instead of leaving them dry overnight. I switched to clinchers maybe 8 or 10 years ago. Just found them more durable and more importantly, with the high pressure stuff out there for decades now, I can't really feel enough difference to warrant sticking with tubulars. YMMV.