Both have their merits, pros and cons.
You can’t beat digital for ease of use. For web based showings and prints up to 8x10 (or even 11x14), works great. I must have close to 700 pics online done digitally.
However, for print media; slide film is still by the most popular. Found this out recently the hard way…but that’s another story (luckily, had slide film from the PCT).
FWIW - found 36 exposure Fuji slide fillm from B&H photo for $3 a roll, another $3 to develop (iirc). For that’s 720 pics in 20 rolls. Or $120 for to buy film and develop.
Scanning them to CD is the expensive part. The good quality slide scanners (the photo CD’s usually aren’t too great if done for non-professional use ie. lik XYXMart or your local drug store) can be expensive. I’ve seen slides scanned in for professional use. Exquisite! But expensive. I need some one in an MFA program who has access to all the good stuff. 
Ah decisions, decisions. Note I am in favor of both…but for different needs. Guess if high quality is a premium (books, magazines, large prints) go with slides. If convenience and the occasional larger print for personal use is what you are after, digital. I have not used slide film in over 3 yrs…but again, seriously considering it for the CDT. So, I am pretty unbiased as I have used both.
Of course, if you want the best of both worlds, a digital SLR for $2000 would do it, too. Anyone want to donate? 
Mags