I have around a dozen film cameras,of which only four are interchangeable lens, 'bodies'. Probably half a dozen electric-Picture-Makers, of which only one is an interchangeable lens, DSLR.
A few of the Film cameras are just for sentimental value; I have a Voiglander TLR, that is almost unservceable, but my Granddad bought in a bizzare in Palestine in the 1940's to take his wedding photo's! And my first Olympus XA2 that has done moon and back mileage with me over twenty years, that one's an old freind!
There's a novelty Minox sub-mini that is basically a museum piece; but my other Grandad's Konica C35 is both sentimental and functional and gets more occasional use, with a couple of others.
Of the film SLR's, a loft-find M42 mount, all metal, all clock-work, Sigma MK1, quarter of a century or more ago, endeared itself to me and I built up a 'perod' all prime kit around it, and that is probably still my most used film camera, now that the two Olly OM's have been relieved of front line duty by the EPM.
In use; I would usually carry the two Olly's and the XA compact, for most stuff. One body loaded with slide, other with B&W or mounted with different lenses, depending; the compact for incidental shots.
DSLR.. interesting switch here.. the more compact of the breed D3200, with three lenses, and no film, has FILLED the space in the gadget bag, that was once once occupied by two winder equipped OM Bodies, and three or four lenses and a converter, and a bunch of filters! Spare batteries, spare film, and a ruddy great flash! So much for the miracle of miniaturization electronics was supposed to have wrought!
Before the DSLR, the rather battered XA No1 compact was bottom drawed in favour of a digital compact; of which there has bee a succession in the last fifteen years... yeah.. NOT as durable as film cameras of old, that, apart from the much used and abused XA No1, are all still going strong!
But demise of the last Digi-Pact was actually prompt to get the DSLR, when reviewing compact digital offerings, squeezed in the market place by ever cheaper entry level DSLR one end, and camer-phones the other. Which has lead to an irony, in the switch, seeing the Film-SLR's backed by digi-compact, replaced by Digi-SLR backed by.... another XA2 film compact! (which I now have to find pocket space for, as there's not enough room to squeeze it in the gadget bag, lol)
So, all depends really; I can justify owning pretty much all the cameras I have, except perhaps the Minox Sub-Mini; AND most of them do get some 'use'. I mean, once upon a time, there was barely one camera per household, and the 'family-camera' took on average something like 20 pictures a year, if it was lucky, usually during the annual family holiday, and maybe the odd Christening or Wedding, and spent the rest of it's time sat in a draw.
So, for me, it's a question of picking from the shelf what's appropriate for an outing, and what I would 'actually' like to use! The 'Three Camera' outfit of old, probably hasn't changed much as a basis; only now it will likely be a Film SLR and the DSLR, plus one of the film compacts; probably one of the XA2's or possibly Granddad's old Konica, or as likely, I'll leave the EPM behind, and take a digi-pact instead; Or I'll just take the EPM and an XA2; but I can mix and match; and I may take nothing more than a film-compact, or just the DSLR OR... gasp! NO CAMERA AT ALL! - You know, some-times, it is nice, to just sit and watch the show, or enjoy the scenery, and NOT take photo's!
In fact anything photographic but I have OCD and GAS a terrible affliction I have to live with 
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