Yeah I got that one pretty much fixed too, thou I did get conned into bagging 2 this year (out of 50), so I'm ok with it but here's the spiel:
The Toro mower that I have is a Grand Recycler and I paid extra to have a specially configured mulching deck which unfortunately lacks the hardware to attach any kind of bagging system.
That's for when they don't go for the usual 'it's cheaper to mulch vs. bagging' story. And if it gets right down to the nitty gritty, sorry bro, don't do bagging, and cya L8r.
cauz the problem is bs, it takes close to twice as long (yeah once you add the time it takes to unload it) and it is highly illegal to dump it on the side of the road or even down in the brush, they catch you, it's all over. Meanwhile, the commercial dump charges a 40-dollar fee AND if I put it on my 1-acre lot, it's still an eventual problem as the pile gets bigger and bigger. So I guess when someone absolutely insists you could add 30 percent to the price where a 30-dollar lawn becomes 40, but even then it still irks me and I'd just as soon not fool with it.