Full Auto is fun and has a fetishistic quality in that it is forbidden (or just expensive) fruit. The NFA rules are bizarre and the only thing more mind-boggling is the whole '86 crap. THAT is what comes out of compromise about 2nd Amdt issues. Doing it illegally might be more fun, but 10 years at club fed just doesn't sound good to me.
Apart from that, my only full auto experience (so far) was in service and that was on the M-60 and the SAW. That was great in that I didn't have to pay for the ammo or clean the weapon (we shot range weapons for record on the belt feds so didn't have the chore of cleaning). It was easy to qualify on both and a lot of fun. If anyone offers me use of a belt fed with those conditions being met (and without having to sign my life away for some years) I'll be their ernest pal.
Would like to fire a Thompson also.