Almost all I do is shoot trap. Having a few health issues now that has pulled my averages waaaaay down, but still shooting every day our club is open (5 days per week in the summer, 7 days in the winter).
An 1100 Trap will work for casual shooting, but if you get hooked on competition, shooting 300 a day, you'll either need a second one or a large number of parts as they tend to break. Nothing big, and can be fixed in a few minutes IF you have the part.
A Browning Citori Trap, on the other hand can be found for about the same price (an older one) or a few hundred more for a newer one. Don't be afraid of used or well used in a trap gun, they generally hold up well and can be rebuilt relatively cheaply.
For a trapshooter, 5K +/- guns are commonplace. I had heart palpitations the first time I shucked 5K out for a gun, but I sold it a few months ago, after several hundred thousand more rounds, being rebuilt twice in that time, and for exactly what I paid for it-5K.
Trap is fun but I should warn you that competition is very addictive. It is a sport that can be enjoyed by kids, women, old men, & people confined to wheelchairs (there's actually a category in ATA competition for "Chair shooters). It's pretty neat to see some little kid, shooting a gun that is longer than he or she is tall, breaking all or most all of the targets thrown.
My wife, that I had taken handgun shooting several times (she could shoot, just wasn't interested), got hooked on trap the first day I took her to the club. Now she owns two of those shotguns (which, of course, I paid for

).
At your range, you probably can get others to let you try their guns. Trapshooters like to do that, BUT it is kind of an unwritten, unspoken rule that you always use factory ammo when you do shoot someone else's gun.
Good luck,
Bob